A young Australian tourist is brutally murdered and dismembered in the grounds of a historic British manor house. A man is convicted of her murder on the flimsiest of evidence, and the distraught owner sells the house. The new owners – keen to profit from the gruesome history – open the house up for ghost hunts, and it is on one Halloween night when a group of people searching for paranormal activity come face to face with the building's past. What starts out as a night of fun, evolves into a battle of survival as one by one the hunters become the hunted.