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.

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

Genre:Horror, Thriller, Mystery,

country:United Kingdom,

Production:John Argyle Productions,