The investigation continues but the difference in approach between Florence and Antoine complicates the investigation. In addition, the presence of an ex-boyfriend of Florence only complicates the ongoing investigations. Did the victim lead a double existence? What criminal esthete could hold it against him to the point of cutting his throat at the foot of one of the major works of the Louvre? Engaged in his expeditious methods inherited from the PJ from which he was dismissed, Antoine stamps his feet. Little by little, in the corridors of the prestigious establishment, they discover a major clue ...