"Watson, do you believe in ghosts?"

With this question, Sherlock Holmes shatters the calm of a quiet evening in their London flat and, with Dr. John Watson at his side, embarks upon a particularly strange case. Holmes has received a request for aid from Lord Charles Cary, whose family is seemingly being threatened by ghosts in and around the family manor. The manor is Torre Abbey, a twelfth-century monastery in Torquay, Devon, and it has a long history of hauntings. While skeptical of the supernatural, Holmes does believe that the Cary family is in danger-a belief which proves to be horrifyingly accurate when, shortly after they arrive at Torre Abbey, a household member dies suddenly, mysteriously, and seemingly of fright. As strange sightings and threatening apparitions become almost commonplace, Holmes must uncover the secrets of the haunted abbey and the family that lives there if he is to have any hope of protecting the living and avenging the dead. In a case that taxes his wits, and seems beyond the reach of his usual methods, Holmes must grapple with his most deadly and unforgiving foe.