After the tragic loss of their son, perfect couple Gemma and Will begin to experience strange auditory hallucinations and losses of vision, as they attempt to escape their worries while vacationing at an acquaintance's remote cottage in the Lake District.

Will Spanner, the reluctant heir to a dark legacy, is again thrown into battle against the forces of evil when a series of gruesome murders begins to take place. The victims are all brutally murdered in a ritualistic fashion - the heart is taken from each corpses. The victims also have something else in common with Will, something that the minions of darkness will stop at nothing to possess.