The search for a child murderer drags a once-respected detective into an all-consuming obsession.
| Directing | Ladislao Vajda | Director |
| Writing | Hans Jacoby | Screenplay |
| Production | Lazar Wechsler | Producer |
| Production | Artur Brauner | Producer |
| Sound | Bruno Canfora | Original Music Composer |
| Camera | Ernst Bolliger | Director of Photography |
| Camera | Heinrich Gärtner | Director of Photography |
| Editing | Hermann Haller | Editor |
| Art | Max Röthlisberger | Production Design |
| Sound | Kurt Hugentobler | Sound Designer |
| Writing | Ladislao Vajda | Screenplay |
| Costume & Make-Up | Robert Gamma | Costume Design |
| Costume & Make-Up | Josef Coesfeld | Makeup Artist |
| Costume & Make-Up | Hans Hügi | Makeup Artist |
| Editing | Julio Peña | Editor |
| Writing | Friedrich Dürrenmatt | Writer |
