There is a fire in a building and a fireman saved the life of M.Sylvestre.Vincent and Bernard arrive and see when the firemen came down the stairs with the old man.Some hours later M.Sylvestre tells Vincent and Bernard that a necklace with a diamond that was in his room is missing.The apartment of a young porno actress ,Virginie, has been vandalized.When Virgile arrives at the station, she meets her mother who doesn't agree with her job.The commissioner Meurteaux has organized a meeting with the firemen: two men are present: the fireman Lancelot and the corporal Joubert: both men may be suspects and they accuse each other; the commander Vidal of the firemen will collaborate in the investigation: their lockers will be inspected and also their apartments.Alain, Nadine and Chloé visit the studio where Virginie is working, a peep show where the clients may ask for a performance and they pay with credit cards.
—zutterjp48