In this action thriller, Richard Anconina is Willie, a young and lonesome cop who loves lonesome cowboy music. While on a drug case Willie comes across a mulatta named Jo (model Ambre of Senegalese extraction), who is trapped in a dismal life of prostitution by two abusive Lebanese brothers. Risking his own life, Willie frees Jo from their fierce imprisonment, but the battered woman runs right back again.
| Actor | Role |
|---|---|
 Richard AnconinaWillie | Willie |
 AmbreJo | Jo |
 Michel DuchaussoyDarmines | Darmines |
 Yan EpsteinMichel Charki | Michel Charki |
 Thierry de CarbonnièresJean-Pierre Charki | Jean-Pierre Charki |
 Georges MontillierRené | René |
 Marc BrunetRoger | Roger |
 Jean-Claude AdelinBattista | Battista |
| PPatrick PérezCarli | Carli |
| KKamel Cherifle Tunisien | le Tunisien |
| DDominique Bernardle père de Willie | le père de Willie |
| FFred Romanola copine du Tunisien | la copine du Tunisien |