Plot
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.
| Writer | Edgar Wallace |
|---|---|
| Director | Norman Lee |
| Actor | Leslie Banks, Lilli Palmer, Cathleen Nesbitt |
| Country | United Kingdom |
| Production | John Argyle Productions |
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