Niemans and Camille convict the head of the youth welfare Michel Lagorce and the police officer Stéphane Gandolfi as perpetrators and accomplices of the murders in Roubaix. In the nineties, abused themselves in the children's home Saint Vincent, they lead, with the support of some children from the home, a campaign of revenge against those who were responsible for the sexual abuse and serious mistreatment back in the nineties.
