A businessman organises a caper to steal the Crown Jewels from the Tower of London.
| Directing | Freddie Francis | Director |
| Writing | Jimmy Sangster | Screenplay |
| Writing | Edgar Wallace | Novel |
| Camera | Ray Hearne | Director of Photography |
| Camera | Ronnie Taylor | Camera Operator |
| Directing | Claude Hudson | Assistant Director |
| Costume & Make-Up | Jill Carpenter | Makeup Artist |
| Costume & Make-Up | Henry Montsash | Hair Designer |
| Art | Tony Inglis | Art Direction |
| Editing | Oswald Hafenrichter | Editor |
| Sound | Peter Thomas | Original Music Composer |
| Production | Horst Wendlandt | Producer |
| Production | Ted Lloyd | Executive Producer |
