The Door with Seven Locks (1940)

A wealthy lord dies and is entombed with a valuable deposit of jewels. Seven keys are required to unlock the tomb and get hold of the treasure. A mad doctor uses an iron maiden to systematically eliminate the heirs to the fortune.

Directed by: Norman Lee

Starring: Leslie Banks, Lilli Palmer, Cathleen Nesbitt, Gina Malo, David Horne, Romilly Lunge

Links: IMDb, Movie posters, Movie stills