Enigmatic gangster Silien may or may not be responsible for informing on Faugel, who was just released from prison and is already involved in what should be a simple heist. By the end of this brutal, twisting, and multilayered policier, who will be left to trust?
| Actor | Role |
|---|---|
 Jean-Paul BelmondoSilien | Silien |
 Serge ReggianiMaurice Faugel | Maurice Faugel |
 Jean DesaillySuperintendant Clain | Superintendant Clain |
 René LefèvreGilbert Varnove | Gilbert Varnove |
 Marcel CuvelierPolice inspector | Police inspector |
 Philippe MarchJean | Jean |
 Fabienne DaliFabienne | Fabienne |
 Monique HennessyThérèse | Thérèse |
 Carl StuderKern | Kern |
 Christian LudeDoctor | Doctor |
| JJacques De LeonArmand | Armand |
 Jacques LéonardPolice inspector | Police inspector |
 Philippe NahonRemy | Remy |
 Charles BayardOld Man | Old Man |
 Paulette BreilAnita | Anita |
 Michel PiccoliNuttheccio | Nuttheccio |
 Charles BouillaudBarman | Barman |
| DDaniel CrohemInspector Salignari | Inspector Salignari |
| AAndrèsButler (uncredited) | Butler (uncredited) |
 Robert BlomeBarman (uncredited) | Barman (uncredited) |
 Volker SchlöndorffMan in Bar (uncredited) | Man in Bar (uncredited) |
 Georges SellierBarman (uncredited) | Barman (uncredited) |
 Dominique ZardiNuttecchio's Man (uncredited) | Nuttecchio's Man (uncredited) |