Jean Lajeunesse, Pierre Thériault, Frédérique Collin, Roger Lebel, Luce Guilbault, Hélène Loiselle, Thérèse Cadorette, Jean-Pierre Lefebvre, René Caron, Léo Gagnon et al.
Mob boss and highway developer Vincent Padovani is hosting a dinner party at his luxurious home celebrating the opening of the new Trans-Quebec highway he just finished work on. In attendance are the Quebec MP who awarded the contract, his secretary and legal adviser, an out-of-work hitman, and the mayor of Montreal. Two events occur that threaten to disturb the evening: first, they learn from a journalist of a planned protest of the highway by a group of people who had their houses demolished during the construction. Second is the return of Padovani's estranged wife, Rejeanne, who left him for a rival gang leader.