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.
Is The Door with Seven Locks on Netflix? Unfortunately the movie The Door with Seven Locks is not yet available on Netflix.
| Production | John Argyle | Producer |
| Editing | Ted Richards | Editor |
| Art | C. Gilbert | Art Direction |
| Production | Hamilton G. Inglis | Production Manager |
| Directing | Norman Lee | Director |
| Camera | Ernest Palmer | Director of Photography |
| Camera | Alex Bryce | Director of Photography |
| Writing | Edgar Wallace | Novel |
| Sound | F. McNally | Sound Recordist |
| Writing | Gilbert Gunn | Screenplay |
| Writing | Norman Lee | Screenplay |
| Sound | Guy Jones | Original Music Composer |
| Directing | Roy Parkinson | First Assistant Director |
| Sound | Harry Benson | Sound Supervisor |
| Camera | Ronald Anscombe | Camera Operator |
| Sound | Guy Jones | Music Director |
