The Testament of Dr. Mabuse (Das Testament des Dr. Mabuse) is a 1933 movie by director Fritz Lang, a sequel to Dr. Mabuse, der Spieler. The film was Lang's second sound film and the second to feature Dr. Mabuse as a villain. Many modern filmmakers, including Claude Chabrol, have named Testament as the movie which inspired them in turn to make films.

Berlin police inspector Lohmann investigates a case, in which all clues lead to a man, who's in a hospital for mental illnesses for since many years - Dr. Mabuse. Written by Stephan Eichenberg