Episode list

Parisian criminal police commissioner Matthieu Pérac is not amused when his captain adds to his team on six months 'trial' criminology teacher Chloé Saint-Laurent, who ignores all police work, procedure and sensibilities. The first case with her is a murdered babysitter, who actually stole identities serially. Crucial proves her own frustrated biological identity and dysfunctional family, foster system children may be at risk.

Rising physician Thomas Cavellian is poisoned at the hospital where his impossible to please bully father Robert is chief of staff. Similar poisoned chocolates are intercepted before Robert falls victim too. The team works out that the doctors were transgressing ethically in a cancer therapy testing program.

A brilliant Parisian bachelor lawyer is murdered. He was fired weeks earlier for atypically deserting his job after failing to save a young client. The team works out the case turns around a baby boy's abduction and multiple identity thefts committed by an illusive crook, whose latest 'father' even falsely confesses the murder to save him, but might still be caught for an earlier murder.

Selfmade Paris art dealer Vincent's second wife Juliette is fatally stabbed by their lush villa's pool. He left his first wife and their adolescent son Anthony for Juliette, who apparently had an affair. She was recently contacted by her destitute junkie father. Vincent, whose corpse is soon found in an abandoned stolen car, ran the firm with his poorly paid cousin Blondeau and a devote secretary. He fenced and laundered for mobster Igor Dimitrova, but a bag of cash from their deals went missing. The tax services received an anonymous denunciation letter.

A well-loved activist is found dead after a fire in a cheap hotel. Matthew has trouble managing Chloe's missteps in this case, where private and public life are closely intertwined.

Parisian Vautier mobilizes Matthieu Pérac's team to look for his teenage daughter Laura, which he reported missing months ago. When interviewed the right way, sole school friend Amandine Verganti reveals how class bitches cruelly set shy Laura up with a fictitious date. After the trails from there to an ex-con pedophile and mythomaniac music teacher as well as art teacher Catherine Delage run dead, the father admits having faked an anonymous letter. The team reevaluates a suspect and comes up with another theory, based on a twist after a much earlier, never solved abduction.