It is 1921. Authorities investigate a series of disappearances in rural Dorset, but the villagers have their own theory: A local myth tells of a vampire that, every few decades, steals away three victims. Is there any truth to the myth, or is something more mundane at work? And what does it all have to do with Creston Grange, the local manor house, now standing derelict and rumored to be one of the most haunted sites in England?