While the Sexists rule the roost in Sainte-Foy, Huguette and her gang take advantage of their children's departure to summer camp to try to reestablish good neighborly relations.

To prove that she has become a docile and harmless housewife again, Huguette participates in a beauty contest organized by the mayor of Sainte-Foy.

Huguette tries to convince her gang to go to Montreal to track down the invader. The criminal is back, the time for her revenge has come.

While Huguette and her gang are plunged back into a murderous spiral, Gaétan returns to Sainte-Foy to try to ensure his redemption. Will he hear the cries for help from his friends in danger?

After facing a thousand dangers, Huguette and her clan celebrate Serge's birthday. During a midnight bath, their last, they will realize that love is a mystery as beautiful as it is dangerous.