14岁的小女孩克莉丝蒂（Brenna O'Brien 饰）驾车时不慎造成一场严重的车祸，她的精神受到严重刺激，而坐在旁边的姐姐维妮莎（卡莉·波普 Carly Pope 饰）也身负重伤。六个月后，维妮莎宣告不治身亡，克莉丝蒂的精神状态也进一步恶化，不得已她被送往康复医院治疗。在此期间，她接受大夫的建议，不断将自己那诡异的梦境画下来，时光在压抑的气氛中缓缓流逝。 为参加葬礼，克莉丝蒂（Nora Zehetner 饰）返回了阔别已六年之久的家乡。当年的梦魇仍在继续，她受到姐夫及其家人的排斥，但是她始终认为姐姐的死另有隐情。克莉丝蒂偷偷展开调查，却发现这一连串罪恶的真相都与她多年来的噩梦息息相关……In Edgemont, Montana, the teenager Christy Wescot is very connected to her beloved sister Vanessa Locke. On her fourteenth birthday, Christy asks Vanessa to drive her convertible car, but she has a car accident, hits a rock and is thrown off the seat; however Vanessa is trapped in the car that explodes and she survives disfigured and totally burnt. Christy is sent to Pine Bluff Psychiatric Care Center for treatment while her sister is treated by her husband Dr. John Locke at home with the assistance of the nurse Claire Wells. When Vanessa has a heart attack and dies, Christy has a breakdown in the funeral service telling that her sister is alive in the coffin. Then she moves to California for the pre-med, but is haunted by nightmares and weird visions. When the caretaker of the family Joseph dies six years later, Christy returns to Edgemont for the funeral and has a cold reception by John and his mother. However, her niece Amy that is afraid of "dark things" behind the walls of the house asks her to stay in the town for a couple of days and Christy's friend Debbie welcomes and lodger her in her house. Christy has mysterious blackouts with strange visions and decides to investigate the death of her sister that she believes had been buried alive, disclosing a dark secret, while the locals believe she has borderline personality disorder.
