The Hound of the Baskervilles

Sir Charles Baskerville dies in mysterious circumstances at Baskerville Hall on the moors in Devonshire and Sherlock Holmes is asked to investigate the case.
The doctors say Sir Charles died of natural causes, but near his body were the marks of a gigantic dog and local people know the story of the terrible, supernatural hound which appears when one of the Baskervilles must die...