Scotland Yard is after a homicidal maniac called The Blue Hand, which is what he uses to kill his victims.
Directing | Alfred Vohrer | Director |
Writing | Herbert Reinecker | Screenplay |
Writing | Edgar Wallace | Novel |
Production | Horst Wendlandt | Producer |
Sound | Martin Böttcher | Music |
Editing | Jutta Hering | Editor |
Camera | Ernst W. Kalinke | Director of Photography |