Inspector Bart is assigned to investigate the disappearance of Many, a young fashion designer with whom he broke up some time ago. But had he really broken up? Because the night before the crime, we see him leaving her house. And that same night, she is found murdered. It's a difficult investigation.
| Actor | Role |
|---|---|
 Georges RivièreInspector Bart | Inspector Bart |
 Lucile Saint-SimonMichèle | Michèle |
 René HavardInspector Moret | Inspector Moret |
 Dora DollPortière | Portière |
 Luce FabioleConcierge | Concierge |
 Joël SériaNot listed | Not listed |
 Lisette LebonNot listed | Not listed |
 Serge SauvionMonsieur Bagil | Monsieur Bagil |
 Yvon SarrayDorand, police officer | Dorand, police officer |
 Véronique VerlhacNot listed | Not listed |
 Jean LuisiNot listed | Not listed |
| PPhilippe LejourNot listed | Not listed |
 Simone BachNot listed | Not listed |
| MMichel DuplaixNot listed | Not listed |
| RRobert ArdayNot listed | Not listed |
| JJean-Paul BarathieuNot listed | Not listed |
| FFrançoise LombardNot listed | Not listed |