S1, E1: A young woman is found brutally murdered and dumped in a skip. Leading the investigation is young public prosecutor Pierre Clement, who teams up with no-nonsense police captain Laure Berthaud and investigating magistrate Judge Roban. Together, they must establish the identity of the victim and get to the perpetrators while navigating a tangled web of political intrigue, prostitution and drugs - each with a different vision of justice, each with their own personal demons.