Cassandre plot
Florence Cassandre is a police commissioner at the prestigious 36, Quai des Orfèvres, which houses the headquarters of the French police. However, she asks to be transferred to Annecy to be closer to her son Jules. He is a rather difficult teenager who lives in an orphanage. She arrives at a new police station and becomes the head of a tight-knit team, which she will have to lead and deal with some strong characters, such as her deputy Pascal Roche.