* Jean Gabin: as Inspecteur Maigret
* Marina Vlady: as Madame Florence
* Bernard Blier: as Émile
* Gérard Blain: as Antoine
* Daniel Crohem: as Dr. Rive
* Paul Frankeur: as Jean-Marie
* Monique Mélinand: as Cécile
* Michel Bouquet: as the Minister
* Charles Vanel: as Louis
* Jacques Dumesnil: as Commissioner
The film is a French crime drama based on the novel of the same name by Georges Simenon. It was directed by Jean-Pierre Melville and tells the story of Inspector Maigret investigating the murder of a young woman.