Holly Martins, an American author of Western pulp novels, arrives in the British sector of Allied-occupied Vienna seeking Harry Lime, a childhood friend who has offered him a job. However, Martins is told that Lime was killed by a car while crossing the street. At Lime's funeral, Martins meets two Field Security Section men, part of the ICPO: Sergeant Paine, a fan of Martins' novels, and Major Calloway. Afterward, Martins is asked to lecture at a book club a few days later. He then meets a friend of Lime's, "Baron" Kurtz, who tells Martins that he and another friend, Popescu, carried Lime to the side of the street after the accident, and that, before he died, Lime asked them to take care of Martins and Lime's girlfriend, actress Anna Schmidt. As Martins and Anna query Lime's death, they realise that accounts differ as to whether Lime was able to speak before his death, and how many men carried away the body. The porter at Lime's apartment tells them that he saw a third man helping. He offers to give Martins more information but is murdered before they can speak again; Martins and Anna flee the scene after a mob begins to suspect him of the murder. When Martins confronts Major Calloway and demands that Lime's death be investigated, Calloway reveals that Lime was stealing penicillin from military hospitals, diluting it, and then selling it on the black market, injuring or killing countless people. Martins agrees to drop his investigation and leave. An inebriated Martins visits Anna and confesses his feelings for her. A man crosses the street towards her front door, but moves away after seeing Martins at the window. After leaving, Martins walks the streets until he notices Anna's cat and realises someone is watching from a darkened doorway. In a momentary flash of light, Martins sees that the man is Lime. Martins calls out, but Lime flees and vanishes. Martins summons Calloway, who realises that Lime has escaped through the city's sewers to the Soviet sector. The British police exhume Lime's coffin and discover that the body is that of a hospital orderly who had been assisting him. Anna, who is Czech, is to be sent to the Soviet sector after the British police discover that she has a forged Austrian passport, and is questioned again by Calloway. Martins goes to Kurtz and asks to see Lime. Lime and Martins meet and talk as they ride the Wiener Riesenrad. Lime speaks cynically of the insignificance of his victims' lives and the personal gains to be earned from the city's chaos and deprivation. Martins realises that Lime sold Anna out to the Soviet authorities for his own benefit. Lime obliquely threatens Martins as he is now the only 'proof' that Lime is alive, however Martins retorts that the authorities are aware of the false burial. Lime then offers Martins a chance to join in on his scheme before leaving quickly. Calloway asks Martins to help arrest Lime; he agrees provided that Calloway will arrange for Anna to leave Vienna rather than be handed over to the Soviets. The British authorities arrange for Anna to take a train to Paris, but she spots Martins, who has come to observe her departure, at the station. After persuading Martins to reveal the plan to capture Lime, she leaves in order to warn him. Exasperated, Martins decides to leave Vienna; on the way to the airport, Calloway stops at a hospital to show Martins children dying of meningitis who were treated with Lime's diluted penicillin, which convinces him to stay and assist in capturing Lime. Lime arrives at a café in the international zone to meet Martins, but Anna is able to warn him that the police are closing in. He flees into the sewer, with the police following him underground. Lime shoots and kills Sgt Paine, but Calloway shoots and badly wounds Lime. Lime drags himself up a cast-iron stairway to a street grating but cannot lift it. Martins, armed with Paine's gun, runs after Lime finding him beneath the grating where they stare at each other. Calloway, realising Martins has chased Lime, shouts that Martins must not take any chances and shoot on sight. Lime nods his head slightly at Martins. Calloway follows down the tunnel as a single shot is heard. Martins attends Lime's second funeral at the risk of missing his flight out of Vienna. He waits on the road to the cemetery to speak with Anna, but she walks past without glancing in his direction.

In Heian-era Kyoto, a woodcutter and a Buddhist monk, taking shelter from a downpour under the Rashōmon gate, have just returned from giving evidence in a trial about the murder of a samurai, and are baffled at the conflicting stories they have heard. They are joined by a commoner, who asks to hear what happened. The film intercuts the discussions of the three men at the gate with flashbacks of witness testimonies and reconstructions of the events described. The woodcutter gives evidence that he had found the body of the samurai three days earlier, alongside the man's cap, his wife's hat, pieces of rope, and an amulet. He had been killed with a sword. The monk states that he had seen the samurai on the day of the murder traveling on foot, accompanying his wife on horseback. A policeman presents the main suspect, a captured bandit named Tajōmaru. In Tajōmaru's version of events, he follows the couple after seeing them in the woods, and lures the samurai away with the prospect of buried treasure. Tying the man up, he returns to rape his wife, who tries to defend herself with a dagger, but ultimately submits. Ashamed of her dishonor, the wife asks Tajōmaru to fight with her husband, saying she will belong to the man who wins. Tajōmaru agrees and kills the samurai (supposedly in an honorable way), only to find that the wife has fled. The wife, having been found by the police, tells a different story. In her version, Tajōmaru leaves immediately after raping her. She frees her husband from his bonds, but he stares at her with contempt and loathing. The wife approaches him with her dagger, and then faints. She awakens to find her husband dead, with the dagger in his chest. In shock, she wanders through the forest until coming upon a pond in which she unsuccessfully tries to drown herself. The dead samurai's testimony is heard through a Shinto medium. In his version, after raping the wife, Tajōmaru asks her to marry him. She accepts, but asks Tajōmaru to kill her husband first. Shocked at her fickleness, Tajōmaru gives the samurai the choice to let her go or have her killed. The wife breaks free and flees, with Tajōmaru unsuccessfully giving chase. Some hours later, Tajōmaru returns and releases the samurai, who then kills himself with his wife's dagger. Later, he feels someone remove the dagger from his chest, but cannot tell who. Back at the Rashōmon gate, the woodcutter proclaims all three stories to be false, and repeats that the samurai was killed with a sword, not a dagger. Pressed by the commoner, the woodcutter admits that he had actually seen the murder but says that he lied to avoid getting into trouble. In the woodcutter's telling, Tajōmaru promises to marry the wife after raping her. She breaks free and releases her husband, expecting him to kill the assailant. However, the samurai refuses to fight, unwilling to risk his life for a ruined woman. Tajōmaru retracts his promise. The wife taunts them both, demanding that they fight for her. They fight unwillingly and clumsily. When the samurai is disarmed and begs for his life, Tajōmaru kills him. The wife flees, and Tajōmaru steals the samurai's sword and limps away. The woodcutter, the monk, and the commoner are interrupted by the sound of a crying baby. They find a child abandoned at the gate along with a kimono and an amulet. The commoner attempts to steal the items, and the woodcutter rebukes him. The commoner deduces that the woodcutter had lied not because he feared getting into trouble, but because he had stolen the wife's dagger and needed to avoid it appearing in his evidence. The commoner leaves, mocking the others. The monk attempts to soothe the baby. Having lost his faith in humanity after the events of the trial, when the woodcutter attempts to take the child, he recoils. The woodcutter explains that he intends to raise the child along with his own children, and the monk softens, his faith restored. As the woodcutter leaves with the child in his arms, the rain stops.

In October 1986, two women are found raped and murdered on the outskirts of a small town. Local detective Park Doo-man, not having dealt with such a serious case before, is overwhelmed. Evidence is improperly collected, investigative methods are suspicious and modern forensic technology is near non-existent. Park claims to be able to find suspects by eye contact. He questions a scarred mentally handicapped boy, Baek Kwang-ho, after Park's girlfriend Seol-yung suggests the boy used to follow one of the victims around town. Park's partner Cho beats Baek and forces him to confess. Seo Tae-yoon, a detective from Seoul with more scientific training in crime scene analysis, volunteers to assist the investigation. However, his and Park's methods clash. Seo determines Baek is not capable of committing the crimes. After closely studying the crime reports, he discovers the decomposed remains of a third victim who had been killed earlier and finds that the killer struck on rainy nights and targeted women wearing red. Inspector Kwon, the police force's diligent but unrecognized female officer, observed that the same obscure song was requested on the local radio station on the night of each crime. Despite a stakeout, on the next rainy night, the killer murders a woman near a gypsum mine. The next night, Park, Cho and Seo stake out the crime scene and interrupt a man masturbating. They apprehend him, but his improvised "confession" does not fit the details of the crime. He mentions a mysterious person who rises out of the outhouses at a local school; this fits with a similar story that two local schoolgirls told Seo on the night of the most recent murder. Seo investigates and finds the killer's only surviving victim, a traumatized woman living near the outhouses. She tells him details that exclude the man arrested at the crime scene. Park and Seo fight when the man is released, but when the killer strikes again, they agree to work together. Their investigation leads them to Hyeon-gyu, a handsome clerk at the mine who originated the song requests. Seo notes that Hyeon-gyu's hands are soft like the survivor's description and that he moved to the town around the time of the first murder, but otherwise has no concrete evidence. Listening to Baek's "confession" again, they realize that he had seen one of the murders as it occurred. They go to the restaurant run by his father, where they encounter a drunken Cho, who has been suspended for beating Hyeon-gyu. When other patrons mock the police for not solving the crime, Cho instigates a brawl. Baek hits Cho with a broken table leg, causing a rusty nail to puncture his leg, and runs off. Park and Seo chase him, but before they can learn what he knows, the frightened Baek stumbles in front of a passing train and is killed. The coroner discovers semen in the latest victim, which could identify the culprit. But since South Korea is behind on the necessary scientific advancements, they are forced to send the sample to the United States to compare it against Hyeon-gyu's. Meanwhile, the untreated wound in Cho's leg begins to develop tetanus, forcing it to be amputated. On the next rainy night, Seo surveils Hyeon-gyu but dozes off and loses track of him. Park's girlfriend Seol-yung walks through a secluded wooden area, passing one of the schoolgirls Seo had befriended. The killer, watching from the trees, arbitrarily picks the schoolgirl and murders her. Enraged, Seo attacks Hyeon-gyu the next day. Park interrupts him with the results of the DNA test. They are inconclusive - Hyeon-gyu is neither confirmed nor excluded as a suspect. However, as Park looks him into the eyes, he seems to sense that Hyeon-guy is the killer. Nevertheless, as Seo tries to shoot Hyeon-gyu, Park stops him and Hyeon-gyu is allowed to leave. In 2003, the crimes remain unsolved. Park has married Seol-yung and is now a father and businessman. He passes by the first crime scene and stops at the spot where the first victim was found. A young girl tells him she saw a man in the exact place, who was reminiscing about something he had done there a long time ago. Park asks the girl what the man looks like, and she answers he looks very ordinary, so much to the point where she is unable to describe any outstanding details. Shaken by the realization that the killer blends into society and could be anybody, Park stares into the camera.

In 2035, twenty-nine years after a virus killed 99 percent of the global human population, James Cole is a prisoner in a compound underneath the ruins of Philadelphia. He is selected by scientists for a mission to travel to 1996 and collect information on the original strain of the virus so a cure can be developed. Cole experiences recurring dreams of a childhood experience in which he saw a man being shot in an airport terminal. Upon being sent back in time, Cole arrives in Baltimore in 1990, not 1996 as planned. He is arrested and committed to a psychiatric hospital on the diagnosis of Dr. Kathryn Railly. He encounters fellow inmate Jeffrey Goines, an outspoken critic of consumerism. Cole tells the hospital doctors he is searching for the Army of the Twelve Monkeys, the group that unleashed the virus in 1996, which is the past. During an escape attempt aided by Jeffrey, Cole is abruptly returned to the future. The scientists attempt to send Cole back to 1996, but he briefly arrives on a World War I battlefield, where he encounters José, another inmate from the future, before being shot in the leg. In 1996, Railly gives a lecture on the Cassandra Complex where she briefly encounters Dr. Peters, who mentions the destruction of the environment by humanity. She is kidnapped in her car and told to drive to Philadelphia. The kidnapper turns out to be Cole. Railly offers him medical help and extracts the bullet from his leg. His investigation leads them to Jeffrey, which they discover is the leader of the Army of the Twelve Monkeys and the son of renowned virologist Dr. Leland Goines. Cole is abruptly returned to the future. Railly is told by police that the bullet from Cole's leg was from before the 1920s, which prompts her to identify Cole in a battlefield photograph from World War I that she's gathered during her research. She urges Leland to secure his lab against access by his son. Leland shares his intention to improve the lab's security with his assistant, Dr. Peters. Cole arrives in 1996 again and finds Railly. He tells her he believes himself delusional, while she says she's not sure any more. Railly leaves a voicemail on a number Cole says was given to him by the scientists. Cole tells her he has already heard her message, played to him by the scientists in the future. Cole and Railly decide to spend the following days together at the Florida Keys. On their way there, they learn that the Army of the Twelve Monkeys is an animal rights organization led by Jeffrey, and their graffiti "we did it" refers to liberating animals from the Philadelphia Zoo, not releasing the virus. At the airport, Cole records a message on the voicemail number, saying the Army of the Twelve Monkeys is a false lead and that he's not coming back. Railly comes across Dr. Peters at the airport and recognizes him through a newspaper photo alongside Leland. Cole comes across José, who tracked him down after his last message, and hands him a gun. Railly informs Cole of Peters, and Cole attempts to shoot him, but is shot dead by police. As Cole dies in Railly's arms, she makes eye contact with a young boy witnessing the scene. Peters boards his flight and takes a seat beside Jones, one of the scientists who orchestrated Cole's mission. Outside the airport, the young boy who observed the shooting, James, watches the airplane take off.

In 2049 Los Angeles, bioengineered humans known as replicants are still used for slave labor. K (short for serial number, KD6-3.7), a Nexus-9 replicant, works for the Los Angeles Police Department as a "blade runner," an officer who hunts and "retires" (kills) rogue replicant models. After "retiring" replicant Sapper Morton, K finds a box buried under a tree at Morton's farm. It contained the remains of a female replicant who died during a caesarean section. This demonstrates that replicants could reproduce biologically, previously thought impossible. K's superior, Lt. Joshi, fears this knowledge will lead to war between humans and replicants, so she orders K to retire the replicant child and destroy all related evidence. K visits the Wallace Corporation, successor to the defunct Tyrell Corporation in the manufacture of replicants. DNA archives identify the deceased female as an experimental Nexus-7 replicant. K learns of her romantic ties with former blade runner Rick Deckard. CEO Niander Wallace wants the secret to replicant reproduction to expand interstellar colonization. He sends his replicant enforcer, Luv, to monitor K. An unidentified figure engages several prostitutes in the city, including one named Mariette, to keep eyes on K. At Morton's farm, K finds the date 6.10.21 carved into the tree trunk and recognizes it from a childhood memory of a wooden toy horse. Because replicant memories are artificial, K's holographic AI girlfriend Joi suggests that this is evidence that K was born, not created. K discovers in LAPD records that two children born on that date have identical DNA, but are inexplicably registered as being opposite genders, and that the girl died from a genetic disorder. K's search for the boy leads him to an orphanage, but the records from the year in question are missing. K recognizes the orphanage from his memories and finds the toy horse in the furnace where he remembers hiding it. He then visits replicant-memory-maker Dr. Ana Stelline, who confirms that his memory of the orphanage is a real memory that someone lived, leading K to conclude he is the deceased replicant woman's son. K then fails a baseline test, marking him as rogue. When he implies to Joshi that he killed the replicant child, she gives him 48 hours to pass the test, or he will be retired himself. Joi hires prostitute replicant Mariette to sync with to be able to have sex with K. The following morning, Mariette places a tracker in K's jacket prior to leaving. K then takes the wooden toy horse to be analyzed for its origin, which leads him to the ruins of a now radioactive Las Vegas. There he finds Deckard, who informs him that the deceased replicant woman was named Rachael, and that he is the father of Rachael's child. Deckard had helped the Replicant Freedom Movement scramble the birth records to protect the child's identity. Deckard then left the child with the Movement to ensure the hunted child would not be found through him. Luv, who has killed Joshi, tracks K to Las Vegas. She kidnaps Deckard, destroys Joi, and leaves an injured K behind. Using Mariette's tracker, the Movement rescues K. Their leader, Freysa, reveals that Rachael's child was actually a girl. Fearing that Deckard may give up the freedom movement to Wallace and endanger the child, Freysa urges K to kill him. K deduces that the memory of the toy horse actually belongs to Dr. Stelline, who is Rachael's daughter. Luv takes Deckard to meet Wallace, who offers Deckard a duplicate Rachael in exchange for information about the child's whereabouts. Deckard refuses the offer, so Wallace has Luv kill the duplicate. As Luv transports Deckard to be tortured off-world, K intercedes. He fights and drowns Luv but is mortally wounded in the process. K tells Deckard that he will be presumed dead, and is now free to go to his daughter, and then takes him to Dr. Stelline's facility. Standing outside the facility, he hands Deckard the toy horse. Deckard enters the building and meets Dr. Stelline, while K dies on the front steps.

On October 2, 1988, troubled teenager Donald "Donnie" Darko sleepwalks outside, led by a mysterious voice. Once outside, he meets a figure named Frank in a monstrous rabbit costume. Frank tells Donnie that the world will end in 28 days, 6 hours, 42 minutes, and 12 seconds. Donnie wakes up the next morning on a local golf course and returns home to discover a jet engine has crashed into his bedroom. His older sister Elizabeth tells him the FAA investigators do not know its origin. Over the next several days, Donnie continues to have visions of Frank, and his parents, Eddie and Rose, send him to psychotherapist Dr. Thurman. Thurman believes Donnie is detached from reality and that his visions of Frank are " daylight hallucinations," symptomatic of paranoid schizophrenia. Frank asks Donnie if he believes in time travel, and Donnie in turn asks his science teacher, Dr. Kenneth Monnitoff. Monnitoff gives Donnie The Philosophy of Time Travel, a book written by Roberta Sparrow, a former science teacher at the school who is now a seemingly senile old woman living outside of town, known to the local teenagers as Grandma Death. Frank begins to influence Donnie's actions through his sleepwalking episodes, including causing him to flood his high school by breaking a water main, an act for which Donnie almost gets caught. Donnie later starts dating Gretchen Ross, who has recently moved into town with her mother under a new identity to escape her violent stepfather. Gym teacher Kitty Farmer begins teaching "attitude lessons" taken from local motivational speaker Jim Cunningham, but Donnie rebels against these, leading to friction between Kitty and Rose. Kitty arranges for Cunningham to speak at a school assembly, where Donnie insults him. He later finds Cunningham's wallet and address. Gretchen and Donnie go on a movie theater date, where Gretchen falls asleep and Frank reveals himself to be a teenager with his right eye hollow and bleeding. Frank then convinces Donnie to burn down Cunningham's house, which he does while Gretchen is at the theatre. Firefighters discover a hoard of child pornography at the burned remains. Cunningham is arrested, and Kitty, who wishes to testify in his defense, asks Rose to replace her as chaperone for their daughters' dance troupe on its trip to Los Angeles. With Rose in Los Angeles and Eddie away for business, Donnie and Elizabeth hold a Halloween costume party to celebrate Elizabeth's acceptance to Harvard. At the party, Gretchen arrives distraught as her mother has gone missing, and she and Donnie have sex for the first time. When Donnie realizes that Frank's prophesied end of the world is only hours away, he takes Gretchen and two other friends to see Sparrow. Instead of Sparrow, they find two high school bullies, Seth and Ricky, who are trying to rob Sparrow's home. Donnie, Seth, and Ricky fight in the road in front of her house just as Sparrow returns home. The bullies and Donnie's two friends leave when an oncoming car runs over Gretchen, killing her. The driver turns out to be Elizabeth's boyfriend, Frank Anderson, wearing the same rabbit costume from Donnie's visions. Angered, and realizing what is happening, Donnie shoots Frank in the right eye with his father's gun and walks home carrying Gretchen's body. Donnie returns home in the morning as a vortex forms over his house. He borrows one of his parents' cars, loads Gretchen's body into it, and drives to a nearby ridge that overlooks the town. There, he watches as the plane carrying Rose and the dance troupe home from Los Angeles gets caught in the vortex's wake, violently ripping off one of its engines and sending it back in time. Events of the previous 28 days unwind. Donnie wakes up in his bedroom, recognizes the date is October 2, and laughs as the jet engine falls into his bedroom, killing him. Around town, those whose lives Donnie would have touched wake up from troubled dreams. Gretchen rides by the Darko home the following day and learns of Donnie's death from his neighbor. Gretchen sees Rose, and the two wave at each other in a moment of déjà vu.

The film opens with brightly lit images of couples dancing the jitterbug, over which a young blonde woman appears smiling and being applauded, followed by a point-of-view shot descending toward a pillow as someone lies down. At night on Mulholland Drive, a brunette woman in an elegant evening dress narrowly escapes being shot by her chauffeur when another car crashes into them. Left with amnesia, she wanders into Los Angeles and hides in a vacant apartment. The next morning, she is discovered by Betty Elms, an aspiring actress newly arrived from Deep River, Ontario, who is staying at her aunt's place. The brunette adopts the name "Rita" after seeing a poster of Rita Hayworth and recalls only that she is in danger. The two become friends and discover a blue key and a large sum of cash in Rita's purse. A man eating at a diner recounts a nightmare to his friend in which he encounters a monstrous figure in the alley behind the diner. When they go outside to investigate, a filthy homeless person appears from around a corner exactly as predicted, and the man collapses in shock. Film director Adam Kesher is pressured by mob -connected businessmen to cast an unknown blonde, Camilla Rhodes, in his new film The Sylvia North Story. When he refuses, the mob shuts down production and freezes his accounts. He returns home to find his wife cheating on him, is beaten and thrown out, and finds out his bank account has been frozen. A mysterious cowboy warns him to cast Camilla. Meanwhile, incompetent hitman Joe Messing botches a job, killing bystanders. Rita remembers the name "Diane Selwyn," and Betty locates her address in a phone book. A seemingly psychic neighbor warns that "someone is in trouble," and building manager Coco cautions Betty about letting Rita stay. Betty leaves for an audition, where she performs brilliantly; a casting agent brings her to Adam's audition for The Sylvia North Story. While Camilla auditions with a performance of " I've Told Ev'ry Little Star," Betty and Adam share a brief but intense glance before she slips away to meet Rita. Adam agrees to cast Camilla to appease the mob. Betty and Rita visit Diane's apartment complex, where a neighbor who recently exchanged units with Diane says she has not been seen in some time and directs them to her apartment. Inside, they discover a woman's decomposing corpse on the bed. Rita panics and tries to cut her own hair, but Betty instead disguises her with a blonde wig. That night, they have sex and Betty twice confesses she is in love. Rita later wakes them both by chanting silencio, no hay banda ('silence, there is no band') in her sleep, and insists on visiting Club Silencio, where the host explains all performances are pre-recorded. Betty and Rita weep as Rebekah Del Rio performs a Spanish rendition of " Crying," and Betty discovers a blue box in her purse that matches Rita's key. Back at the apartment, Rita unlocks the box and realizes Betty has vanished, then disappears herself. The narrative shifts to Diane, a depressed and struggling actress who looks exactly like Betty. She awakens in the bedroom where the corpse was found. Moving through her morning in a daze, she recalls memories of her former lover Camilla, a femme fatale actress who resembles Rita: a volatile sexual encounter and breakup; being forced to watch Adam and Camilla kiss during a film rehearsal; and a dinner party at Adam's house, where Diane learns she lost the lead in The Sylvia North Story to Camilla, to whom Adam announces his engagement. The memories culminate in Diane hiring Joe at the diner to kill Camilla, with a blue key promised as confirmation. The homeless person behind the diner opens the blue box, releasing a tiny elderly couple – the same pair who accompanied Betty upon her arrival in Los Angeles. Back in the present, a traumatized Diane stares at the blue key on her coffee table. Terrorized by hallucinations of the elderly couple, she flees to her bedroom and shoots herself, dying in the same position as the earlier corpse. As the room fills with gunsmoke, Betty and Rita are shown smiling at each other. At Club Silencio, a blue-haired woman whispers "silencio".

Psychologist Kris Kelvin is about to be sent on an interstellar journey to evaluate whether a decades-old space station, positioned over the oceanic planet Solaris, should continue its research. He spends his last day on Earth with his elderly father and a retired pilot named Burton. Years earlier, Burton had been part of an exploratory team at Solaris but was recalled when he described strange happenings, including seeing a four-meter-tall child on the surface of the water on the planet. A panel of scientists and military personnel dismissed these visions as hallucinations, but now that the remaining crew members are making similarly strange reports, Kelvin's skills are needed. After leaving the house, Burton tells Kelvin that he recognized the child's face as that of one who was orphaned due to the disappearance of one of the Solaris explorers. Upon his arrival at the Solaris research station, he finds it in disarray. He soon learns that his friend among the scientists, Dr. Gibarian, has killed himself. The two surviving crewmen—Snaut and Sartorius—are erratic. Kelvin also catches fleeting glimpses of others aboard the station who were not part of the original crew. He finds that Gibarian left him a rambling, cryptic farewell video message, warning him about the strange things happening at the station. The video shows two appearances of a little girl who should not be aboard the station, with Gibarian asking Kelvin if he has seen her and insisting he is not insane, and should strange things happen to Kelvin, it will not be Kelvin having gone insane. After a fitful sleep, Kelvin is shocked to find Hari, his wife who died ten years earlier, sitting in his sleeping quarters. She is unaware of how she got there. Terrified by her presence, Kelvin launches the replica of his wife into outer space. Snaut explains that the "visitors" or "guests" began appearing after the scientists conducted radiation experiments, directing X-rays at the swirling surface of the planet in a desperate attempt to understand its nature. That evening, Hari reappears in Kelvin's quarters. This time, he calmly accepts her and they fall asleep together in an embrace. Hari panics when Kelvin briefly leaves her alone in the room, and injures herself attempting to escape. But before Kelvin can give first aid, her injuries spontaneously heal before his eyes. Sartorius and Snaut explain to Kelvin that Solaris created Hari from his memories of her. The Hari present among them, though not human, thinks and feels as though she were. Sartorius theorizes that the visitors, also called "guests", are not composed of atoms like regular humans, but are made of neutrinos, and that it might still be possible to destroy them through use of a device known as "the annihilator". Later, Snaut proposes beaming Kelvin's brainwave patterns at Solaris in hopes that it will understand them and stop the disturbing apparitions. In time, Hari becomes more human and independent and is able to exist away from Kelvin's presence without panicking. She learns from Sartorius that the original Hari had taken her own life ten years earlier. Sartorius, Snaut, Kelvin and Hari gather together for a birthday party, which evolves into a philosophical argument, during which Sartorius reminds Hari that she is not real. Distressed, Hari kills herself again by drinking liquid oxygen, only to painfully resurrect after a few minutes. On the surface of Solaris, the ocean begins to swirl faster into a funnel. Kelvin falls ill and goes to sleep. He dreams of his mother as a young woman, washing away dirt or scabs from his arm. When he awakens, Hari is gone; Snaut reads her farewell note, in which she explains how she petitioned the two scientists to destroy her. Snaut then tells Kelvin that since they have broadcast Kelvin's brainwaves into Solaris, the visitors have stopped appearing and islands have started forming on the planet's surface. Kelvin debates whether to return to Earth or remain on the station. Kelvin appears to be at the family home seen at the beginning of the film. He sinks to his knees and embraces his father. The camera slowly cranes away to reveal that they are on a Solaris island.

Linguist Louise Banks's daughter Hannah dies at the age of twelve from an incurable illness. Twelve extraterrestrial spacecraft hover over various locations around the Earth. In the ensuing widespread panic, affected nations send military and scientific experts to monitor and study them. In the United States, US Army Colonel Weber recruits Banks and physicist Ian Donnelly to study the craft above Montana. On board, Banks and Donnelly make contact with two cephalopod -like, seven-limbed aliens, whom they call "heptapods"; Donnelly nicknames them Abbott and Costello. Banks and Donnelly research the complex written language of the heptapods, consisting of phrases written with logograms, and share the results with other nations. As Banks studies the language, she starts to have flashback-like visions of her daughter. When Banks is able to establish sufficient shared vocabulary to ask why the heptapods have come, they answer with a statement that could be translated as "offer weapon". China interprets this as "use weapon", prompting them to break off communications, and other nations follow. Banks argues that the symbol interpreted as "weapon" can be more abstractly related to the concepts of "means" or "tool"; China's translation likely results from interacting with the heptapods using mahjong, a highly competitive game. Meanwhile, the Russian team receives a message that they translate as "there is no time," which they interpret as a possible threat. Rogue soldiers plant a bomb in the Montana craft. Unaware, Banks and Donnelly reenter the alien vessel, and the aliens give them a more complex message. Just before the bomb explodes, one of the aliens ejects Donnelly and Banks from the vessel, knocking them unconscious. When they wake, the heptapod craft has moved beyond reach and the US military is preparing to evacuate in case of retaliation. General Shang of China issues an ultimatum to the alien craft in China, demanding that it leave within 24 hours. Russia, Pakistan, and Sudan follow suit; communications between the international research teams are terminated as worldwide panic sets in. Donnelly discovers that the symbol for time is present throughout the message and that the writing occupies exactly one-twelfth of the 3D space into which it is projected. Banks suggests that the full message is split between the twelve craft and that the heptapods want all the nations to collaborate in order to decipher it. Banks goes alone to the Montana craft, which sends down a transport pod. Abbott has been mortally injured as a result of the explosion. Costello explains that they have come to help humanity, because in 3,000 years' time they will need humanity's help in return. Banks realizes the "weapon" is their language. Learning the language alters humans' linear perception of time, allowing them to experience memories of future events. Banks's visions of her daughter are revealed to be premonitions; her daughter will not be born until sometime in the future. Banks returns to the camp as it is being evacuated and tells Donnelly that the aliens' language is the "tool" that was meant by the word "weapon". She experiences a premonition of a United Nations event celebrating global unity achieved by finally deciphering the heptapods' language. At the event, General Shang thanks Banks for persuading him to stop the attack when she called his private number and recited his wife's dying words. He then shows her his private number and whispers his wife's words into her ear. In the present, Banks takes CIA agent Halpern's satellite phone from a table and calls Shang's private number to recite the words. The Chinese announce that they are standing down and releasing their twelfth of the message. The other countries follow suit, and the twelve spacecraft depart. From what she has learned, Banks writes and publishes a book called The Universal Language, a guide to the heptapod language, which will eventually teach humanity to perceive time the same way as the heptapods. During the evacuation, Donnelly expresses his love for Banks. They talk about their life choices and whether he would change them if he could see his life from beginning to end. Banks knows that she will agree to have a child with him despite knowing their fate: that Hannah will die from an incurable disease and that Donnelly will leave them both as a result of her revealing that she knew this.

One year after Vincent van Gogh 's suicide, postman Joseph Roulin asks his son Armand to deliver Van Gogh's last letter to his brother, Theo. Roulin finds the death suspicious, as merely weeks earlier Van Gogh claimed through letters that his mood was calm and normal. Armand reluctantly agrees and heads for Paris. Père Tanguy, a Montmartre art supplier, tells Armand that Theo actually died six months after Vincent. He suggests that Armand travel to Auvers-sur-Oise and look for Dr. Paul Gachet, who housed Van Gogh after his release from an asylum, shared his love for art, and attended the funeral. Once there, Armand learns that the doctor is out on business, so he stays at the same inn that Van Gogh did during his time in the area. There, he meets the temporary proprietress Adeline Ravoux, who was fond of Van Gogh and also surprised by his death. At her suggestion, Armand visits the local boatman, who informs him that Van Gogh kept close company with Dr. Gachet's sheltered daughter, Marguerite. When Armand visits her, Marguerite denies and is angered when Armand implies that Van Gogh's suicidal mood could have resulted from an argument with her father. Throughout the investigation, Armand begins to suspect a local boy named René Secretan, who reportedly liked to torment Van Gogh, owned a gun, and had often drunkenly brandished it around town. Dr. Mazery, who examined Van Gogh, also claims that the shot must have come from a few feet away, ruling out suicide. When Armand implicates René, Marguerite confesses that she was in close, but not romantic, relations with Van Gogh, but she does not believe that René was capable of murder. Dr. Gachet finally returns and promises to deliver Armand's letter to Theo's widow. He admits there was an argument between them – Van Gogh accused Gachet of being a coward for not pursuing his dreams, to which Gachet angrily accused Van Gogh of worsening Theo's health by overly depending on his brother. Gachet posits that this accusation drove Van Gogh to suicide in order to release Theo from the burden. After Armand returns home, postman Roulin later receives word from Theo's widow, Johanna, thanking Armand for returning the letter. Johanna attaches to her letter to Armand one of Van Gogh's letters to her – signed, "Your loving Vincent."

After an oil crisis, Lunar Industries makes a fortune by building Sarang Station, a facility on the far side of the Moon to mine the alternative fuel helium-3. The facility requires only one human to maintain operations and launch canisters bound for Earth containing helium-3. Samuel Bell has two weeks before ending his three-year work contract there. Chronic communication problems have disabled all live communications with Earth and limit him to occasional recorded messages from his wife Tess, who was pregnant with their daughter Eve when he left. Sam begins to suffer from hallucinations of a teenage girl and a disheveled man. One such image distracts him while he is out recovering a canister, causing him to crash his rover and fall unconscious. Sam awakes in the base infirmary with no memory of the accident. He overhears GERTY, an artificial intelligence which assists him, having a live chat with Lunar Industries management, despite the apparent communications failure. Lunar Industries orders Sam to remain on base and says that a rescue team will arrive for repairs. Suspicious, Sam fakes an emergency to persuade GERTY to let him outside. He travels to the crashed rover and finds his unconscious doppelganger. He takes the double back to the base, and GERTY tends to his injuries. The two Sams start to wonder if one of them is a clone of the other. After an argument and physical altercation, GERTY reveals that they are both clones of the original Sam Bell. GERTY activated the newest clone after the crash and convinced him that he was at the beginning of his three-year contract. His memories of his wife and daughter are implanted. The two Sams search the area, finding a communications substation beyond the facility's perimeter which has been interfering with the live feed from Earth. GERTY helps the older Sam access the recorded logs of past clones, who all fell ill as their contract expired, and he realizes that he is headed towards a similar fate, having already started to experience symptoms. Later, the older Sam discovers a secret vault containing hundreds of hibernating clones. Lunar Industries is using clones of the original Sam Bell to avoid the cost of training and transporting new astronauts, as well as deliberately jamming the live feed to prevent the clones from contacting Earth; clones, who believe they are entering hibernation at the end of their contract before their final return to Earth, are actually incinerated. The older Sam drives past the interference radius in another rover and tries to call Tess on Earth. He instead makes contact with Eve, now 15 years old, who says that Tess died years before. He hangs up when Eve tells her father on Earth that someone is calling regarding Tess. Returning, the older Sam's physical deterioration worsens. The two Sams realize that the incoming rescue team will kill them both if they are found together. The newer Sam convinces GERTY to wake another clone, planning to leave the awakened clone in the crashed rover and send the older Sam to Earth in one of the helium-3 transports. However, the older Sam, having learned that the clones break down at the end of the 3-year contract, knows that he will not live much longer. With his health declining, the older Sam suggests that he be placed back into the crashed rover to die so that Lunar Industries will not suspect anything, while the newer Sam escapes. Following GERTY's advice, the newer Sam reboots GERTY to wipe its records of the events. Before leaving, the newer clone reprograms a harvester to crash and wreck the jamming antenna, thereby enabling live communications with Earth; he also takes a helium-3 canister with him to Earth. The older Sam, back in the crippled rover, remains conscious long enough to watch the launch of the transport carrying the newer Sam. The rescue team is fooled after finding both a newly-awakened clone in the medical bay and the corpse of the older Sam inside the crashed rover.

The film is set in a small rural village in 19th century Japan. According to tradition, once a person reaches the age of 70, he or she must travel to a remote mountain to die of starvation, a practice known as ubasute. The story concerns Orin, who is 69 and in sound health. However, she notes that a neighbor had to drag his father to the mountain, so she resolves to avoid clinging to life beyond her term. She spends a year arranging all the affairs of her family and village, severely punishing a family hoarding food and helping her younger son lose his virginity. The film contains harsh scenes depicting the brutal conditions faced by the villagers. Interspersed between episodes in the film are brief vignettes of nature—birds, snakes, and other animals hunting, watching, singing, copulating, or giving birth.