The story revolves around the Lutz family, who finally find their dream home in a picturesque town in New York, only to discover that what seems like a perfect home hides dark secrets. After having been the scene of a horrific murder, the old mansion quickly becomes a place of terror. From the very first day, George Lutz, the father, begins to experience strange visions and a growing sense of paranoia. His wife, Kathy, also starts to notice inexplicable phenomena, such as bloodstains appearing on the walls and unsettling noises during the night.
As the days go by, the atmosphere of the house becomes increasingly oppressive. The Lutzes begin to encounter increasingly strange and violent behaviors, driven by a malevolent force that seems to inhabit the house. The children, also victims of the horror, watch as their home transforms into a nightmare, while George's mental health deteriorates, leading him to make drastic decisions.
In a desperate attempt to escape the torment, the family seeks help from paranormal experts, who encounter a dark entity that is unwilling to let them leave easily. With each attempt to rid the house of its curse, the struggle between the family and the evil intensifies. The final tension leads to a chilling conclusion that will leave everyone wondering if they can truly escape the shadows of the past.