Chloé Mathieu enters into a pharmacy: she is witness of a robbery with a syringe full of contaminated blood,Chlo tries to arrest the robber, but she is receives an injection, but the robber manages to escape with the help of an accomplice who has been arrested.Bernard and Vincent go to a place where a delivery van has intentionally burned and the responsible escape with a scooter.Some minutes later they find a scooter before the cabinetmaking business: they ask for the the driver of the scooter.It's the son-in-la of the owner of the cabinetmaking business,When they ask him why he put fire to the delivery van,he answers that that his father-in-law obliges his mother to make love with the clients of his business.The commissioner gives the order to Chloé, Nadine and Agathe to find immediately this tremendous robber who makes holdup with his syringe.
—zutterjp48