Everyone has a secret. Twins Sarah and Gaëlle near 25; for ten years, Sarah has been a fundamentalist Carmelite in a Brazilian convent, and Gaëlle has been in prison for a heinous crime. Sarah comes to the attention of Fr. Joachim, a priest and physician; he can find no cause for her debilitating abdominal pain. When Sarah and he are transferred to Paris, Joachim looks for Gaëlle, now on probation and finding no respite from society's approbation. An enterprising reporter is digging into Gaëlle's life, the mother superior of Sarah's convent hovers over her, and Joachim investigates the phenomenon of twin's symmetry. Is there any release from the past?
| Directing | Graham Guit | Director |
| Writing | Marcelle Bernstein | Novel |
| Writing | Roselyne Bosch | Screenplay |
| Production | António da Cunha Telles | Executive Producer |
| Production | Alain Goldman | Producer |
| Production | Catherine Morisse | Associate Producer |
| Sound | Alexandre Desplat | Original Music Composer |
| Camera | Patrick Blossier | Director of Photography |
| Editing | Marie-Blanche Colonna | Editor |
| Production | Marie-Christine Lafosse | Casting |
| Production | Patrícia Vasconcelos | Casting |
| Art | Denis Renault | Production Design |
| Costume & Make-Up | Nathalie du Roscoat | Costume Design |
| Costume & Make-Up | Maryse Faure | Key Hair Stylist |
| Costume & Make-Up | Turid Follvik | Key Makeup Artist |
| Costume & Make-Up | Alexis Kinebanyan | Special Effects Makeup Artist |
| Costume & Make-Up | Benoît Lestang | Special Effects Makeup Artist |
| Costume & Make-Up | Emmanuel Pitois | Special Effects Key Makeup Artist |
| Sound | Vincent Arnardi | Sound Re-Recording Mixer |
| Sound | Emmanuel Augeard | Sound Editor |
| Sound | Marc-Antoine Beldent | Sound |
| Sound | François Lepeuple | Foley Artist |