"Dr. Caligari" is a silent horror film released in 1920, directed by Robert Wiene. It is considered a landmark of German Expressionist cinema, known for its stylized sets and dramatic lighting. The story follows Francis, a man recounting his experiences with the sinister Dr. Caligari, who uses a somnambulist named Cesare to commit murders. The film explores themes of madness and authority, reflecting the anxieties of post-World War I Germany. Its innovative visual style and narrative structure have influenced countless filmmakers and established it as a classic in the horror genre.