Sixteen-year old Tess has suffered an arduous past. She's been diagnosed with an assortment of mental ailments first discovered when her mother, Jessica, found Tess banging her head against the wall when she was just five. Now, the latest medication Tess has been taking seems to be working and Jessica chooses to move them to a new town for a fresh start.
But just as Tess begins to find comfort and hope in her new surroundings, hallucinations begin involving a dead girl, Lucy who was recently killed in a car accident and whose picture Tess finds at a memorial by the side of the road. The hallucinations intensify as Lucy seems to be taking over Tess's mind and soul. Doctors can't help her, and neither can the local priest, so it's left to her single mother to fight for her daughters' soul.