Grey, an elite detective, has the mission to investigate the assassination, in Paris, of a great Hollywood star. There is no real motive, and yet the suspects are numerous. The investigation promises to be long and difficult.
| Actor | Role |
|---|---|
 Maurice LagrenéeNot listed | Not listed |
 Raymond CordyCorvetto | Corvetto |
 Colette DarfeuilDaisy Garden | Daisy Garden |
| PPaule DagrèveRosa Schneider | Rosa Schneider |
 Jean BrochardDetective Poussin | Detective Poussin |
 Philippe HersentBernard Dartmore | Bernard Dartmore |
 Fernand MaillyDoctor Dartmore | Doctor Dartmore |
 Ky DuyenNot listed | Not listed |
 Eddy DebrayNot listed | Not listed |
| RRenée PiatNot listed | Not listed |
| KKetty PiersonNot listed | Not listed |
| LLily FairlieNot listed | Not listed |