New Yorker Ben Phillips and mysterious Léo Hoffmann are strangers who are summoned to Paris by a mutual acquaintance. Upon arrival, they meet and soon find themselves tangled in a complex mystery.
| Actor | Role |
|---|---|
 Joe DallesandroBen | Ben |
 Maria SchneiderLéo | Léo |
 Hermine KaragheuzThe other one | The other one |
 Danièle GégauffElisabeth | Elisabeth |
 Sylvie MattonShirley | Shirley |
 Françoise PrévostRenee Novick | Renee Novick |
 Maurice GarrelJulius Danvers | Julius Danvers |
 Michel BertoJerome | Jerome |
| DDominique ErlangerThe secretary | The secretary |
 Frédéric MitterrandLe conseil | Le conseil |
 Jean-François StéveninThe decorator | The decorator |
 Pascale DaumanThe nurse | The nurse |
 Benjamin LegrandThe chauffeur | The chauffeur |
| MMarc LabrousseThe first accomplice | The first accomplice |
| JJean HernandezThe second accomplice | The second accomplice |
| FFlorence BernardThe woman of the cemetery | The woman of the cemetery |
 Humbert BalsanThe knight | The knight |
| BBarre PhillipsMusician: double bass | Musician: double bass |
| JJohn SurmanMusician: bass clarinet | Musician: bass clarinet |
 Jacques RivetteMan entering car (cameo) | Man entering car (cameo) |