A woman's unsolved family history comes back to haunt her in an eerie, old, isolated manor in the Scottish Highlands. Ailsa Calder has inherited half of a house. The other half belongs to a man who disappeared from her life without a trace twenty-seven years ago—her father. Leaving London behind to settle the inheritance, Ailsa returns to her childhood home, nestled amongst the craggy peaks of the Scottish Highlands, joined by the half-sister who's almost a stranger to her. Ailsa can't escape the claustrophobic feeling that the house itself is watching her—as if her past hungers to consume her. She also can't ignore how the neighborhood animals refuse to set one foot within the gates of the garden. When the first nighttime intruder shows up and the locals in the isolated community pry into her plans for the manor, Ailsa becomes terrified that the mysteries surrounding the beautiful old home will cost her everything.