A sleazy photographer dabbles in blackmail and winds up dead. Kader's shady, long-absent father shows up after many years, but Cherif suspects his motives may be other than reuniting with family.
Actor Tom Duval returns to the precinct to film a movie there. His longtime assistant is found dead, apparently strangled during the shooting of a scene. Cherif and Briard must solve it ASAP before Internal Affairs takes over.
A man is fatally shot ion a drive-by while standing near Deborah in front of the police station. Which of them was the target? The investigation leads the team to another serious crime. Adeline learns a major decision is imminent.
Questions remain about the shootings. An old foe with a grudge against Deborah smugly appears. Kader finds himself in the middle of swirling personal developments.