Manon is a precocious 13-year-old girl living with her mother Michelle and intellectually challenged uncle Ti-Guy in the Laurentides. Manon wants to quit school and obtain the true love of her mother, whom she accuses of not loving her. Michelle is pregnant with the child of Maurice, a police officer who tries to convince her to give up caring for Ti-Guy, by placing him in an institution. Ti-Guy is frequently stealing from Michelle, drinking excessively, driving dangerously and stalking the family’s wealthy female neighbour. Maurice also pressures Michelle to get an abortion. Michelle is determined to have the child, and insistent on keeping Ti-Guy with her.
Manon strongly dislikes Ti-Guy for his misbehavior and Maurice for being a cop, and when Michelle tells Manon of her pregnancy, Manon becomes upset. Manon prefers Gaetan, Michelle’s former lover who gives her marijuana, and also steals the book Wuthering Heights from their neighbour and starts reading it.
On her birthday, Manon runs away for a time and phones her mother asking for her exclusive love, which Michelle takes as hurtful. After Manon comes back, she tells Michelle that Maurice molested her, at which point Michelle angrily chases Maurice away. Michelle consequently begins dining with Gaetan and Manon, with Manon promising to no longer hurt her. Confronting Ti-Guy in his vehicle, Manon screams at him and convinces him to commit suicide by crashing the vehicle. While sleeping with her mother, Manon receives Maurice’s call about the death, but shields Michelle from the news.