A teenage girl Billie endures a miserable existence with her alcoholic mother. The mother punishes her daughter every day just for being born. Billie has never been to school, she is not allowed to get a job and she is not permitted to leave the house ever. As such, Billie's bizarre upbringing has resulted in her becoming a virtual prisoner in her own home. During a three day drinking binge, the mother forgets to buy groceries, forcing a starving Billie to sneak out of the house in search of food. Unfortunately, her mother catches her and Billie's chained to the laundry sink as punishment. When Billie agrees to run away from home with her new friend Sean her mother uncovers the plan and refuses to let Billie go. Billie's repressed anger is unleashed and, in her fury, she mortally wounds her mother. Burying the body in the backyard Billie hides all traces of the crime. As she waits for Sean to arrive it soon becomes clear that the mother's evil, vengeful spirit remains in the mortal world. Even in death, the mother is hell bent on denying Billie her freedom.