Fritz Lang's groundbreaking 1931 thriller follows the manhunt for Hans Beckert, a compulsive child killer terrorizing Berlin, played chillingly by Peter Lorre. As police pressure disrupts criminal operations, the city's underworld launches its own parallel investigation to find the murderer. The film is a masterpiece of psychological tension, exploring themes of guilt, mob justice, and the nature of evil.
Fritz Lang films Peter Lorre as the Düsseldorf child-killer. The film is the genre's founding text and a study of vigilante mobs; Lorre's confession is the genre.