 A young woman, Marnie Watson, is granted early release from her prison sentence for manslaughter (killing her husband - a violent NYC cop - in self defense) on condition she wear an electronic ankle bracelet and remain within her home, effectively under house arrest, for the remainder of her sentence. Her late husband s partner keeps tabs on her from a patrol car parked across the street, hoping she ll violate probation and he can send her back to prison. But the 100-foot radius her ankle bracelet allows isn t the worst of her problems. Her dead husband --now a malevolent ghost--is still in the house, where he died -- intent on savage revenge.