The three sisters reunite for the first time in a long time. In his investigation, Nicolas makes a surprising discovery concerning the Boileaus. Joe is shaken by a memory of Charlot. Beth decides to reconnect with her mother.

Mario and Nicolas are urgently called to the newspaper Le Citadin. Agnès surprises Sophie with an intimate gift for her birthday, but her lover's reaction surprises her. Élodie, in bad shape, bursts into the couple's apartment.

Joe, Beth and Agnès return together to the town where they grew up. Deeply buried memories resurface. Beth is greatly shaken by this. Joe finds a precious object that belonged to him.