When a prostitute is murdered in a cheap Berlin boarding house, an investigating judge suspects that the killer is her boyfriend, unaware that his own son and daughter are also mixed up in the case.
| Directing | Robert Siodmak | Director |
| Writing | Robert Siodmak | Writer |
| Writing | Hans Müller | Writer |
| Writing | Robert Liebmann | Writer |
| Writing | Max Alsberg | Theatre Play |
| Writing | Ernst Hesse | Theatre Play |
| Production | Erich Pommer | Producer |
| Camera | Otto Baecker | Director of Photography |
| Camera | Konstantin Irmen-Tschet | Director of Photography |
| Editing | Viktor Gertler | Editor |
| Art | Erich Kettelhut | Art Direction |
| Sound | Eberhard Klagemann | Sound Designer |
| Sound | Fritz Thiery | Sound Designer |
| Directing | Paul Martin | Assistant Director |