Cyril Aubin, a teenager without history, is violently attacked at home during an attempted burglary. Only problem, Leo Mattéi and his team quickly wonder if a burglar has really entered Cyril's home. Mattei quickly suspects Cyril's father of attacking his son, but Jeanne doubts the teenager's mental health and wonders if they are dealing with a schizophrenic, dangerous to himself and others. Mattei has little time to solve this case, before Cyril is interned by the Justice...
