Young and ambitious Captain Vivés has just been appointed group leader at the Grenoble Criminal Squad when Clara's murder case lands on his desk. Vivés and his team investigate Clara's complex life and relations, but what starts as a professional and methodical immersion into the victim's life soon turns into a haunting obsession.

In a Paris in full economic slump, Jojo and Eugène have one after the other loving failures. And if all this was connected ? Our two infiltrated agents thus begin a investigation on young girls. We discover that the young girls are not always young and sometimes not even a girl.