100 minutes
6/11/1952
Paul Dorgères, a wealthy industrialist, has been mysteriously murdered. The investigation is entrusted to the experienced Chief Inspector Bonnardel and his young rookie assistant, Inspector Richard. Suspicion turns to his mistress Catherine Villard, with whom he had just broken up on the night of the crime. She is soon arrested and charged. However, Inspector Richard discovers a button at the scene of the crime which could help him to trace the trail and confound the culprit(s).
Yves Deniaud
as L'inspecteur-chef Bonnardel
Yves Vincent
as L'inspecteur Richard, jeune assistant débutant de Bonnardel
Élina Labourdette
as Catherine Villard, maîtresse de Dorgères
Henri Crémieux
as M. Phalempeau, homme d'affaires
Robert Dalban
as L'inspecteur Sylvestre, adjoint de Bonnardel
Jean Debucourt
as Maître Landry, avocat pénaliste, ténor du barreau
Marie Déa
as Mme Le Mesles
Marcel André
as Le médecin légiste
Marthe Mercadier
as La détenue-manucure
Charles Dechamps
as Le juge d'instruction Ferrand
Henri Nassiet
as Paul Dorgères, homme d’affaires
María Riquelme
as Étiennette, la concierge
Guy Decomble
as Le concierge
Olivier Hussenot
Jean Barrère
as Pierre
Charles Vissières
as Le détective Henri Bouteiller
Marcel Delaître
as Le commissaire
André Dumas
Michel Etcheverry
as Bertrand Moal
Fernand René
as Le tailleur
Paul Villé
as Le maître d'hôtel de Dorgères
Julien Maffre
as L'hôtelier de Marseille
Zélie Yzelle
as La cuisinière de Dorgères
Madeleine Barbulée
as La voisine
Myriam Bru
as La nièce
Jacqueline Huet
as La vendeuse d'articles de maroquinerie
Odette Barencey
as Une femme
Alfred Adam
as Le vendeur de boutons (uncredited)
René Dupuy
as (uncredited)
Robert Lussac
as Le Mesles (uncredited)
Jacques Morlaine
as Un journaliste (uncredited)
Nadine Tallier
as Amélie, la soubrette (uncredited)
Ernest Varial
as Un homme (uncredited)