Cecile, a young girl who goes to the offices of the Judicial Police several times in a row to complain about nightly visits to the apartment she occupies with her aunt, is not taken seriously by the police until she the day she is found murdered.
| Directing | Maurice Tourneur | Director |
| Writing | Jean-Paul Le Chanois | Adaptation |
| Writing | Michel Duran | Dialogue |
| Editing | Gérard Bensdorp | Editor |
| Art | Guy de Gastyne | Production Design |
| Camera | Pierre Montazel | Director of Photography |
| Writing | Georges Simenon | Novel |
| Sound | Georges Leblond | Sound |
| Sound | Roger Dumas | Original Music Composer |
