This adaptation of the classic Arthur Conan Doyle tale follows the renowned British sleuth Sherlock Holmes (Ian Richardson) and his trusty companion, Dr. Watson (Donald Churchill), as they look into an alleged curse on the family of Sir Henry Baskerville (Martin Shaw). Tormented by sightings of a large vicious dog, Baskerville is convinced that the canine brings death, which seems to be the case when people begin turning up dead out on the misty moors.