A serie of murders is comitted in Nice on the French riviera. The commissaire Carella is in charge and tries to find a missing link between all these murders.
| Directing | Philippe Labro | Director |
| Writing | Evan Hunter | Novel |
| Art | André Hoss | Production Design |
| Editing | Claude Barrois | Editor |
| Writing | Vincenzo Labella | Screenplay |
| Writing | Philippe Labro | Screenplay |
| Sound | Ennio Morricone | Original Music Composer |
| Camera | Jean Penzer | Director of Photography |
| Writing | Jacques Lanzmann | Screenplay |
| Production | Jacques-Eric Strauss | Producer |
| Art | Louis Le Barbenchon | Set Decoration |
| Editing | Nicole Saunier | Editor |
