A Montreal police inspector cracks a murder case with clues from the victim's diary.
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| Directing | Claude Chabrol | Director |
| Sound | Pierre Jansen | Original Music Composer |
| Camera | Jean Rabier | Director of Photography |
| Writing | Sydney Banks | Screenplay |
| Writing | Claude Chabrol | Screenplay |
| Production | Denis Héroux | Producer |
| Production | Eugène Lépicier | Producer |
| Editing | Yves Langlois | Editor |
| Production | Claude Léger | Associate Producer |
| Writing | Evan Hunter | Novel |
| Production | Julian Melzack | Executive Producer |
| Art | Rose Marie McSherry | Set Decoration |
| Art | Anne Pritchard | Production Design |
| Costume & Make-Up | Pierre David | Hairstylist |
| Costume & Make-Up | Michèle Dion | Makeup Artist |
| Production | Louise Mongeau | Production Manager |
| Production | Matthew Vibert | Production Manager |
| Directing | Brice Auboyneau | Assistant Director |
| Directing | Justine Héroux | First Assistant Director |
| Art | Jacques Chamberland | Property Master |
| Sound | Patrick Rousseau | Sound Recordist |
| Lighting | John Berrie | Gaffer |
| Camera | Joel Bertomeu | Assistant Camera |
| Camera | Jean-Yves Bruel | Still Photographer |
| Camera | Jean-Marie Buquet | Assistant Camera |
| Camera | Richard Ciupka | Camera Operator |
| Camera | Yves Mansier | Still Photographer |
| Costume & Make-Up | Blanche Boileau | Wardrobe Master |
| Directing | Aurore Pasquiss-Chabrol | Continuity |
