When Sir Charles Baskerville dies unexpectedly, his nephew and heir Sir Henry returns from South Africa. Dr. Mortimer. the local doctor, is concerned about Sir Henry's safety as he is convinced that Sir Charles was literally frightened to death. He consults Sherlock Holmes and recounts the tale of one Sir Hugo Baskerville who, several generations previously, had been killed by a huge hound and which now is believed by some to be a curse on the family. Holmes agrees to take on the case and it almost immediately becomes apparent that Sir Henry's life is in danger. Holmes doesn't believe in the legend of the Baskervilles or the supposed curse place upon them and sets out to find a more practical solution.