The film takes place in the summer of 1966. A young girl named Élise is enjoying summer vacation, until her mother suddenly abandons her family. It's then that Élise becomes more aware of the dreams, sorrows, and lies of the people closest to her. Her brother Coco stubbornly seeks refuge in constructing a supercar, and the youngest, Benoît, plummets deep into his own internal world, retreating ever-further in the furnace room of their house. Élise's father is simply overwhelmed by the situation. And so Élise decides to take the helm of her drifting family in an attempt to save their future. With support from the silent comfort her mentor Monsieur Mouche offers, and the wonders of nature around her, Élise is on the verge of experiencing a summer unlike any other.
Maman est chez le coiffeur was released in Quebec on May 2, 2008. It has since played at several festivals, including: