When the young detective Paul Nerteaux finds the third slashed female corpse of illegal Turkish immigrants, he decides to ask for support to the experienced dark retired detective Jean-Louis Schiffer to chase the serial killer. Together, they infiltrate in the Turkish mafia trying to find the answer to the crimes. Meanwhile, the worker Anna Heymes is being submitted to a brain treatment and has severe headaches and glimpses of memories and visions. When these two parallel events collide, disclose that the Turkish organization "The Wolves" is behind them.
| Writing | Franck Ollivier | Screenplay |
| Production | Patrice Ledoux | Producer |
| Sound | Samuel Narboni | Original Music Composer |
| Sound | Grégory Fougères | Original Music Composer |
| Editing | Marco Cavé | Editor |
| Sound | Pascal Morel | Original Music Composer |
| Writing | Jean-Christophe Grangé | Novel |
| Writing | Jean-Christophe Grangé | Screenplay |
| Directing | Chris Nahon | Director |
| Production | Andrew Colton | Producer |
| Sound | Luca De' Medici | Original Music Composer |
| Writing | Christian Clavier | Screenplay |
| Camera | Michel Abramowicz | Director of Photography |
| Writing | Chris Nahon | Screenplay |
| Sound | Dan Levy | Original Music Composer |
| Sound | Olivia Merilahti | Original Music Composer |
| Sound | Dan Levy | Songs |
