Candice surprises her children rehearsing a song and thinks it is a surprise for her birthday. At the police station, Leclerc imposes a journalist on her: Victoire Filippi will follow the group for an article, but since she does not follow the rules the Commandant imposed, Candice dismisses her. Victoire tries to win over Mehdi for his performance in the previous case, killing a serial rapist; Mehdi accepts a drink with her to make Claire, distant after their love affair, jealous. The next morning, the team, with a hungover Mehdi, must investigate the murder of Patrick Astier, a renowned journalist whose body has been found inside the tank of a fish farm, half eaten by eels. He had uncovered a case of oyster food poisoning and did not have the sympathy of oyster farmer Jean-Yves Losserand. But he was also Victoire's last boss.
—mgallegog