The Door with Seven Locks
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.
Leslie Banksas Dr. ManettaLilli Palmeras June LansdowneCathleen Nesbittas Ann CodyGina Maloas Glenda BakerDavid Horneas Edward HavelockRomilly Lungeas Dick MartinRichard Birdas Inspector Cornelius 'Andy' SneedJ.H. Robertsas Luis SilvaAubrey Mallalieuas Lord Charles Francis SelfordHarry Hutchinsonas Bevan CodyPhil Rayas Tom CawlerGeorge Streetas Chief CommissionerRoss Landonas John SelfordRaymond Manderas P.C. in Sneed's Office (Uncredited)Charles Patonas Handwriting Expert (Uncredited)George Streetas Chief Commissioner (Uncredited)