Mathilde must collaborate with Élias Viau, from homicide, on the poison pill case. Philippe meets with Jimmy Mathieu's girlfriend to learn more about her relationship with Joseph Petit-Frère. A suspicious death brings the team back to work with homicide. Christian asks Carolanne to oversee surveillance of the multiplex. She is disappointed, as she will now be confined to the office.

Christian has called the team together to review the files. Léonie announces she wants to move into an apartment. Tommy is embarrassed when Mathilde and Carolanne encourage him to do so. Arnaud witnesses a summit meeting between the indigenous boss Paco, Dan Murphy, and Joseph Petit-Frère. He immediately alerts Jean-François.