One evening, professor André Barret sees the author of a murder in the darkness; cafe owner Cordelec is the victim. From then on, his suspicions fall on one of his students who had just arrived in his class, Bernard Cormiere.
Daniel Gélin
Bernard Cormière
Bella Darvi
Pascale Barret
François Périer
André Barret
Jean Brochard
Investigating judge
Julien Carette
Grindel
André Valmy
Rudeau
Julien Verdier
Lachaume
Guy Tréjan
Pélissier
François Darbon
Police commissioner
Madeleine Barbulée
Madame Lachaume
Gisèle Grimm
Henriette
Colette Régis
Madame Bergamier, mother-in-law
Edmond Ardisson
Tobacconist
Claude Carrère
Internal
Max Dalban
Newspaper carrier
Robert Dalban
Cardelec
Émile Genevois
Coffee boy
Marcel Pérès
Agent
Léon Larive
Left-luggage employee
Susi Jera
Josette
Victor Vicas
Director
Jean Hougron
Novel
Jacques Companéez
Writer
Joseph Kosma
Music
Jean Feyte
Editor
Pierre Montazel
Director of Photography
