Sátántangó (Hungarian: [ˈʃaːtaːntɒŋɡoː]), also known in English as Satan's Tango, is a 1994 internationally-coproduced epic drama film directed by Hungarian filmmaker Béla Tarr. Shot in black-and-white and running for more than seven hours, it is based on the 1985 novel of the same name by Hungarian novelist László Krasznahorkai, whose works Tarr has frequently adapted since his 1988 film Damnation. Tarr had hoped to make the film since 1985 but was unable to proceed with production due to the strict political environment in Hungary.

Sátántangó has received widespread critical acclaim from film critics. In 2012, it appeared in the British Film Institute's Sight & Sound critics' top fifty films.

In a desolate Hungarian village, after the collapse of a collective farm, two people, Futaki and Mrs. Schmidt (Éva Almássy Albert), are in a romantic embrace when Futaki is awakened at dawn by the ringing of church bells. Mr. Schmidt (László Lugossy) conspires with another co-worker named Kráner to steal the villagers' money and flee to another part of the country. As Futaki is sneaking out of the Schmidt home, he overhears Schmidt's plans, after which he demands to become part of the scheme – all this being watched by a lonely drunken man known as the Doctor (Peter Berling), who writes the events down in a notebook.

The conspiracy fails when rumors spread across the village that the charismatic and manipulative Irimiás (Mihály Vig), a former co-worker who had been presumed dead, is returning with his friend Petrina (Putyi Horváth). Previously, Irimiás and Petrina had been forced under threat of arrest to continue their criminal enterprise in the employ of the police captain in a near-by town. After hearing a mysterious drone in a bar and proclaiming their intent to blow everything up, they begin their march to the village. They are welcomed by their young ally Sanyi Horgos (András Bodnár), with whom they had made a deal so that Sanyi would spread word among the villagers that the two had died.

At the village, the Doctor discovers that he has run out of fruit brandy. Unaccustomed to leaving his house, he decides to go out to buy liquor nonetheless. Outside, he is met with hostile weather and the arrival of night. He meets Sanyi's older sisters, who are prostitutes dreaming of running away to town since none of the locals have money anymore. After an impossibly long time, the doctor arrives at the local tavern to purchase his brandy, but is unable to find the courage to enter. The doctor is accosted by Estike (Erika Bók), Sanyi's little sister, whose father hanged himself and who had previously been institutionalized. Estike causes the doctor to fall in the mud. In a state of emotional tension, after reacting angrily to this, the Doctor reconsiders and naively tries to apologize as the girl leaves and disappears in the darkness. Chasing after her, the Doctor passes out and collapses in a nearby wood, and is found in the morning by the town's conductor who takes him to a hospital.

The morning before the Doctor left his house, Estike is tricked by her older brother Sanyi into planting a "money tree" in the forest. She tortures and poisons her cat to death, and carries its corpse to the money tree, finding it dug up by her brother who has reclaimed the money. Marauding through the woods, the girl approaches the local tavern and peers through its window, where most of the villagers dance to accordion music, unaware of the peeping child. Afterwards, she encounters the Doctor and retreats into an abandoned ruin, fatally poisoning herself with the feeling that every movement of the world is preordained.

The following day, Irimiás arrives at the village while Estike's funeral is being held. Irimiás tells the villagers they were all guilty of Estike's death and talks most of them into handing him all their money in order to start a new collective in a near-by estate. The villagers (excepting the publican, Sanyi's family and the Doctor) walk together, wheeling their few belongings to a distant abandoned mansion where they lie down to sleep, whereupon the narrator describes the dreams each of them has. Meanwhile, Irimiás, Sanyi and Petrina are walking when Irimiás drops to his knees while hearing once again the mysterious drone as the fog lifts from the ruin where Estike died. They later meet with an accomplice in a near-by town to acquire a large amount of explosives, for reasons never explicitly explained.

The next morning, when Irimiás is late, the villagers decide that they have been duped by Irimiás, and fight among themselves. Schmidt and Kráner (János Derzsi) accuse Futaki of having led them into this trap and demand that he return their money. As they beat him up, Irimiás arrives, scolds them for their squabbling and tells them that his plan to establish a new farm has been delayed by the authorities and that their only hope is to scatter around the country for an unspecified amount of time. Kráner demands that Irimiás give their money back. Irimiás does so, but expresses his disappointment at their lack of trust and unreliability, shaming Kráner into once more giving his money to him. Irimiás, Petrina and Sanyi drive the villagers and their belongings by truck to the city, where Irimiás assigns the Schmidts, the Kráners and the Halicses different towns and different tasks, gives them each 1,000 forints and dismisses them. Futaki, however, tells Irimiás that he would rather find a job as a watchman, takes his thousand forints and leaves on his own. The fate of the headmaster remains unclear.