Back from Asia, Henri contacts Simone, who investigates the murders of young women, to discuss the trial of Sophie Bérubé-Lacroix. Sober for 4 months, Jules Côté does not get the hoped-for encouragement from his mother. A strange individual makes contact with Jules and takes advantage of his fragility. Back at the National Institute of Mental Health (INSM), Henri witnesses an encounter that deeply shocks him.