Devastated by his friend's death, Parisian forensic pathologist Raphaël Balthazar (Tomer Sisley) has vowed never to touch a corpse again. But his resolve wavers when he discovers a dead body while sailing, and soon he's working once more with Chief Inspector Hélène Bach (Hélène de Fougerolles), who's closing in on their most elusive suspect: his wife's killer.