The Cabinet of Dr. Caligari (German: Das Kabinett des Doktor Caligari) is a 1920 silent film directed by Robert Wiene from a screenplay by Hans Janowitz and Carl Mayer. It is one of the most influential of German Expressionist films
The deranged Dr. Caligari and his faithful sleepwalking Cesare are connected to a series of murders in a German mountain village, Holstenwall. Caligari presents an example of a motion picture "frame story" in which most of the plot is presented as a "flashback", as told by Francis.
Francis, along with his betrothed Jane, investigate Caligari and Cesare, which eventually results in Cesare kidnapping Jane. Caligari orders Cesare to kill Jane, but the hypnotized slave refuses after her beauty captivates him. He carries Jane out of her house, leading the townsfolk on a lengthy chase. Cesare falls to his death during the pursuit, and the townsfolk discover that Caligari had created a dummy to distract Francis.
Francis discovers that "Caligari" is actually the director of the local insane asylum, and, with the help of his colleagues, discovers that he is obsessed with the story of a monk called Caligari, who, in 1093, in northern Italy used a somnambulist to murder people as a traveling act. After being confronted with the dead Cesare, Caligari reveals his mania and is imprisoned in his asylum.
A "twist ending" reveals that Francis' flashback is actually his fantasy: he, Jane and Cesare are all inmates of the insane asylum, and the man he says is Caligari is his asylum doctor, who, after this revelation of the source of his patient's delusion, says that now he will be able to cure Francis..
DAS KABINETT DES DOKTOR CALIGARY
ROBERT WIENE (1919)