Expecting another run-of-the-mill salvage job, Bo Andressen and his crew arrive at a crumbling castle in Wales and walk into a mystery of murder, hidden treasure, and greed with roots in the far past. In cooperating with the local law enforcement, Bo agrees to bring in a psychic, hoping to debunk rumors that the castle is haunted. However, paranormal liaison Tristan Lambert discovers that ghosts are only one suspected danger. Bo doesn't believe in ghosts, but Tristan is convinced they're dealing with a revenantâ€a hostile spirit that feeds on sexual energy and will stop at nothing, including possession and coercion, to get it. The arrival of the castle's owner, Sir Rhys Turcotte, with his secretaryâ€who happens to be Bo's ex-loverâ€complicates an already dangerous situation. Unwittingly bound together by an evil spell, Bo and Tristan seek to unmask the revenant's earthly allies... before more people become victims to an ancient evil seeking rebirth.