The son of a notorious serial killer becomes an acclaimed criminal psychologist who uses his unique insight into how killers think to help the NYPD.

A corpse is found in an ice house ten years after Phoebe's husband went missing. The police seem determined to accuse Phoebe, to the delight of the villagers.

Jeanne Deber, known as "La Mante", the famous serial murderer who terrorized France more than 20 years ago, is forced by the police to come out of isolation to track down her copycat. She agrees to collaborate on one condition: to have only one interlocutor, Damien Carrot, her son, who became a cop because of the crimes of his mother, and who refuses all contact with her since her arrest.

During the traditional carnival celebrations, the dead body of a young girl is found near the small town of Bellinzona, in Southern Switzerland. The officers engaged in the case find themselves investigating crimes rooted in a past full of shadows.

A genre-jumping anthology series wherein individuals communicate with the dead.