When Catherine is caught with her illicit lover by her father-in-law Paul, the concerned father leaves to tell his son Thomas about the incident. Paul is injured in an auto accident and returns home in a wheelchair unable to speak. Catherine's guilt weighs heavily on her as she hopes to never let Thomas know she was unfaithful. She panics and seeks a way to eliminate Paul in this psychological thriller.
| Directing | Alain Jessua | Director |
| Writing | Alain Jessua | Writer |
| Writing | André Lay | Novel |
| Writing | Luc Béraud | Dialogue |
| Writing | Dominique Roulet | Dialogue |
| Production | Alain Jessua | Producer |
| Sound | Michel Portal | Original Music Composer |
| Camera | Jean Rabier | Director of Photography |
| Editing | Hélène Plemiannikov | Editor |
| Art | Gérard Daoudal | Production Design |
| Costume & Make-Up | Catherine Demesmeaker | Makeup Department Head |
| Sound | Paul Lainé | Sound |