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.

---

Main Cast: Leslie Banks, Lilli Palmer, Cathleen Nesbitt, Gina Malo, David Horne, Romilly Lunge, Richard Bird, J.H. Roberts, Aubrey Mallalieu, Harry Hutchinson

Director: Norman Lee

Writers: Gilbert Gunn, Norman Lee

Editor: Ted Richards

Cinematographers: Ernest Palmer, Alex Bryce

---

Popular Double Features