The mayor of Montreal, Laurent Saint-Pierre, is at the bedside of his father, Bernard, who was before him a very popular mayor. The latter died and he insisted that Laurent contact his illegitimate son, David, co-owner of the Bar Le Cheval-Serpent, famous for his naked dancers. David is far from sure of wanting to see his father, especially since he is very busy integrating Julien, a gifted dancer, but without experience in this kind of show. Laurent, who publicly commits himself to attacking institutions that "rot" the downtown reputation, is very upset by his father's long-standing affection for David. Dorice, who operates The Snakehorse with David, tries to explain to his spouse, Dominique, why she will not accompany him to Lyon to attend the convocation of their daughter Simone.