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.
Producer: John Argyle
Director: Norman Lee
Director of Photography: Ernest Palmer, Alex Bryce
Screenplay: Gilbert Gunn, Norman Lee
Dr. Manetta
June Lansdowne
Ann Cody
Glenda Baker
Edward Havelock
Dick Martin
Inspector Cornelius 'Andy' Sneed
Luis Silva