Jean-Pierre Melville	...	(Réalisateur)
Jean-Pierre Melville	...	(Scénariste)
Jean-Paul Belmondo	...	Silien
Serge Reggiani	...	Maurice Faugel
Jean Desailly	...	Commissaire Clain
Fabienne Dali	...	Fabienne
Michel Piccoli	...
René Lefèvre	...	Gilbert Varnove (as René Lefevre)
Marcel Cuvelier	...	Un inspecteur
Philippe March	...	Jean (as Aimé De March)
Monique Hennessy	...	Thérèse
Carl Studer	...	Kern
Christian Lude	...	Le docteur
Jacques De Leon	...	Armand
Jacques Léonard	...	Un inspecteur (as Jack Leonard)
Paulette Breil	...	Anita
Philippe Nahon	...	Remy
Charles Bayard	...	Le vieil homme

Résumé: Burglar Maurice Faugel has just finished his sentence. He murders Gilbert Vanovre, a receiver, and steals the loot of a break-in. He is also preparing a house-breaking, and his friend Silien brings him the needed equipment. But Silien is a police informer ... A movie whose "all characters are two-faced, all characters are false", according to director Jean-Pierre Melville.