Phillipe and Esther live an apparently idyllic life with their daughter, Elise. In an attempt to preserve this bliss, Phillipe decides that he and Esther should each have affairs, being sure to tell each other openly about them. The plan backfires with tragic results as Phillipe becomes engulfed in jealously.
| Directing | Claude Chabrol | Director |
| Writing | Paul Gégauff | Screenplay |
| Production | André Génovès | Producer |
| Camera | Jean Rabier | Director of Photography |
| Editing | Jacques Gaillard | Editor |
| Sound | Paul Gégauff | Original Music Composer |
| Sound | Matthieu Chabrol | Original Music Composer |