Holmes and Watson are tasked with investigating the mysterious death of Sir Charles Baskerville on the moors of Devonshire. Local legend says the Baskerville family is cursed by a supernatural hound. Watson is sent to observe the new heir, Sir Henry, while Holmes secretly observes from afar. Watson witnesses strange events but cannot solve the mystery. Holmes later explains that the hound was actually a genetically large dog trained by the villain, Jack Stapleton, to scare Sir Henry off so Stapleton could inherit the estate, as he was distantly related to the Baskerville family. Stapleton hoped to use folklore about the family curse to cover his real plan. In the end