Roberto goes to Marseilles to give a hand to his friend Xavier, wrongly imprisoned following a frame-up organized by his associate Villanova. Roberto sets out to seduce Villanova's mistress, but when Villanova is killed, Roberto ends up leader of the band...
| Writing | Jean Becker | Adaptation |
| Writing | José Giovanni | Novel |
| Writing | José Giovanni | Dialogue |
| Directing | Jean Becker | Director |
| Sound | Claude Normand | Original Music Composer |
| Editing | Denise de Casabianca | Editor |
| Art | Maurice Petri | Set Decoration |
| Production | Adry De Carbuccia | Producer |
| Production | René Gaston Vuattoux | Executive Producer |
| Camera | Ghislain Cloquet | Director of Photography |
| Production | Roland Girard | Producer |
