Summary Marie, a 25-year old young woman, is found stabbed to death on the altar of a church. Gabriel Mangin, a young repeat offender, comes forth and admits to having murdered her. When questioned, Mangin expresses his profound affection for the victim. While the investigators search for a possible motive, the young man's behavior completely changes. He is possessed by a demon who calls himself Belial and claims to have committed the murder. Chloe sees the incident as a sign of schizophrenia, but Rocher thinks it is Mangin's strategy to avoid serving a mandatory prison sentence. While they disagree, the case takes a new turn when investigators discover the young victim was hardly the saint she seemed to be. Chloe, whose request to adopt little Lili has been rejected by social services, sinks into a self-destructive phase, using Garrel to drift further and further astray. Completely broken, she begins to wonder if she isn't a bit demonic herself.

• Crime
• Thriller