Marcel Farnoux, an industrialist, lives with eight women: his wife, his two daughters, his mother, his sister-in-law and two maids. One night, he is found dead, shot through the heart. Inspector Duret has a hard time unmasking the killer from among his eight suspicious wives.
| Directing | Víctor Merenda | Director |
| Production | Albert Caraco | Producer |
| Production | Marius Lesoeur | Producer |
| Crew | Quinto Albicocco | Cinematography |
| Editing | Georges Arnstam | Editor |
| Sound | Philippe-Gérard | Music |
| Writing | Frédéric Dard | Dialogue |