A serial killer named The Shark is terrorizing London by killing his victims with a speargun and then, dressed in a scruba-diver's wetsuit, using the city's sewer tunnels to make his getaway.
| Art | Mathias Matthies | Art Direction |
| Directing | Alfred Vohrer | Director |
| Writing | Edgar Wallace | Novel |
| Sound | Martin Böttcher | Original Music Composer |
| Camera | Karl Löb | Director of Photography |
| Production | Horst Wendlandt | Producer |
| Art | Ellen Schmidt | Art Direction |
| Editing | Carl Otto Bartning | Editor |
| Writing | Harald G. Petersson | Screenplay |
| Writing | Egon Eis | Screenplay |
| Writing | Gerhard F. Hummel | Screenplay |
