Summary Nadine and Agathe are called for the investigation of an aggression: a retired man, Mr. Beauchamps, has been attacked by two young people (a boy and a girl with a scare above the eye),they have stolen his wallet, then they have gone to his apartment for a burglary.Agathe and Nadine arrive too late,but some things were still hidden on the roof of the building.A young female student arrives at the police to inform that a young man with a scooter is following her since some days.Also the burglars has gone to her apartment.Bernard tries to capture the young man,but he escapes.As they notice the registration, the scooter belongs to Nasser, a dynamic young who is volunteer for a cultural association in the neighborhood.And curiously the young woman meets her father in the police station, who is the professor of Nasser.A suspect girl has been arrested, Karine. Mr. Beauchamps has the opportunity to identify her when the police presents her among 5 possible suspects,but he argues that he cannot identify anybody and he is not insisting in filing a claim against the attackers.

• Crime
• Thriller