29 year old Lauren and her young daughter Emily travel from the US to visit an old cottage on the North Yorkshire Moors bequeathed to them by their distant uncle. Shortly after their arrival at the dilapidated cottage, an old friend of the dead uncle visits with some hospitality. Despite Lauren's reluctance, the old woman conducts an impromptu séance and things rapidly begin to go wrong. Within 24 hours. Lauren and Emily are fleeing from the police across the dark, bleak Yorkshire Moors with nowhere to go. Lauren wakes up in bed in an old and unfamiliar room. She has a gunshot wound to her shoulder and a badly .sprained ankle. Watching over her is Len. the kindly rescuer who took her in. He offers an explanation and reassures Lauren that her daughter is safe in another room. Initially warm and generous. Len soon becomes unpredictable and quick to temper. Stuck at Len's mercy. Lauren tries to remain calm and slowly learns more about her rescuer. He has lived alone for years, holds Strong religious and puritanical views and has a darkness about him that Lauren can't quite understand. The relentless psychological battle between Len and Lauren intensifies - she. ever more desperate to save herself and Emily, and he increasingly psychotic. Ever fearful of his unpredictable, violent mood swings, she tries to placate him in order to be reunited with Emily and to escape. As her Strength improves, Lauren continues to probe into Len's past. But it's dangerous; she can never be sure where she Stands with him. When Len's history is finally unravelled, it is far more terrifying than she could ever have known. He carries the darkest of secrets and he needs Lauren to absolve him.