Fired for insubordination, PJ Antoine Verlay, good cop but a blood strand and having difficulty working as a team, is attached to the OCBC (Central Office for the fight against Traffic in Cultural Goods) thanks to the intervention of the commander Pardo, his friend who becomes, therefore, his new superior. A clever investigator, but a stranger to everything related to culture, Antoine will have to work with Florence Chassagne, renowned art historian, who lives, speaks and breathes culture, to the point that - fruit of her great imagination - it happens to her in the midst of daydreams, to see and talk to the great artists who have disappeared as if they were familiar to her.

A young woman arrives in Paris where she finds a job as a waitress in bar next on Avenue Montaigne that caters to the surrounding theaters and the wealthy inhabitants of the area. She will meet a pianist, a famous actress and a great art collector, and become acquainted with the "luxurious" world her grandmother has told her about since her childhood.