A beautician inherits a racing stable and a fortune of 160 million, which she can only collect in 5 years, if she has maintained and cared for the horses, including Prince III, preferred by her uncle who made her his heir. The thoroughbred wins a race during which the rival jockey is killed. The police suspect murder.
| Actor | Role |
|---|---|
 Odile VersoisJacqueline | Jacqueline |
 Michel Le RoyerClaude | Claude |
 Magali NoëlLydia | Lydia |
 Raymond SouplexInspector Masurel | Inspector Masurel |
 Darío MorenoGuido | Guido |
 Jean RichardLaredon | Laredon |
| JJean LemaîtreValta | Valta |
 Lucien CallamandDuperrier | Duperrier |