Paris, 1992. Julien, a science thesis student, learns of the death of Christophe, a young suburban hairdresser he had met a few months earlier on a gay phone line. He sets off on a journey to retrace their history and try to understand and forgive.

Gab and Driss, childhood friends on bad terms since they left the orphanage, now have opposite lives - one is a cop with the IGPN, the other a fixer for thugs. When their first love dies in a suspicious accident, her 17-year-old daughter, Leïla, takes Gab's gun and sets off on the trail of a powerful organization willing to do anything to cover the case up. Forced to team up, the orphans must stop her before she crosses a line she can't return from...