A rich man bequeaths seven keys to seven of his friends, but only one will unlock the door to untold wealth.
| Directing | Alfred Vohrer | Director |
| Writing | Edgar Wallace | Novel |
| Writing | Johannes Kai | Screenplay |
| Writing | Gerhard F. Hummel | Screenplay |
| Writing | Harald G. Petersson | Screenplay |
| Editing | Carl Otto Bartning | Editor |
| Production | Horst Wendlandt | Producer |
| Production | Jacques Leitienne | Producer |
| Crew | Karl Löb | Cinematography |
| Sound | Peter Thomas | Music |