When Sir Charles Baskerville dies under mysterious circumstances, rumors of a family curse resurface—an enormous spectral hound is said to stalk the Baskerville lineage. Sherlock Holmes and Dr. Watson investigate the eerie moors of Devonshire, uncovering dark secrets, deceit, and a deadly plot. As the tension mounts, Holmes must unravel the mystery before the next heir, Sir Henry, falls victim to the terrifying legend.