Rancourt's body was discovered on the grounds of Anne Dupuis. Constance, Frédérik Bérubé, Jonas and Antoine must arrest Anne Dupuis and Mike Pratt since the latter had pieces of Rancourt's body in his car. But Constance has a hard time believing that Mike is involved in this story. Rather, she thinks of a set-up. Meanwhile, Éric Charbonneau wants to carry out his plan, eliminate Sylvain so that he does not speak to the police.