On a beach in Nice, François meets the mysterious Peggy and falls in love with her. Following her to a villa, he meets Marc, a lawyer who has a strange relationship with the girl.
| Directing | Georges Lautner | Director |
| Writing | Richard Matheson | Novel |
| Writing | Georges Lautner | Writer |
| Sound | Philippe Sarde | Original Music Composer |
| Camera | Maurice Fellous | Director of Photography |
| Editing | Michelle David | Editor |
| Art | Jean André | Production Design |
| Art | Robert Turlure | Set Decoration |
| Production | Raymond Danon | Producer |
| Production | Alain Delon | Producer |
| Directing | Annie Maurel | Script Supervisor |
