Malpertuis is a 1972 fantasy horror film directed by Harry Kümel, and starring Orson Welles, Susan Hampshire, Michel Bouquet, Mathieu Carrière, Jean-Pierre Cassel, Daniel Pilon, and Sylvie Vartan. It follows a young sailor who, upon returning to land, awakens to find himself trapped in Malpertuis, his family's isolated labyrinthine estate. It is based on the 1943 novel of the same name by Jean Ray.