In Dartmoor, England everybody thinks a ghostly, killer dog, which has haunted the Baskerville family for generations, killed Sir Charles Baskerville. Sir Henry, Charles's nephew(1) and only heir has come back to England to claim his new money and mansion(2). But first, Henry asks Sherlock Holmes to solve the mystery surrounding his uncle's death.
In London, strange things happen to Henry: he gets a note warning him not to come to Dartmoor, two of his shoes are stolen, and a bad guy follows him. Holmes tells Watson to go the countryside with Henry to keep an eye on him. Watson notices strange things going on in the mansion. Henry falls in love with Beryl, his neighbor, but her brother, Jack, gets mad.
Watson writes reports to Holmes, who is supposed to be in London. But Watson discovers that Holmes has gone to Dartmoor, checking things out. Holmes is pretty sure the killer is Jack who used the legend of the ghostly, killer dog to scare Charles to death.
It turns out that Jack is really Henry's uncle, but he keeps it secret, so no one will know he is out to get the Baskerville money and mansion. And Beryl is really his wife. Jack used a real-live dog with glow(3)-in-the-dark paint to scare Charles to death. Jack was the man following Henry through London. He stole Henry's shoe to give the dog his odour.
Finally, one night when Henry is walking home, Jack sends his mad-dog after him. Holmes shoots the dog just in time and chases Jack into a maze of quicksand(4), where Jack falls and sinks to his death.
1 :newphew= neveu /2 :mansion = manoir/ 3 :glow= luire / 4 : a maze of quicksand = un dédale de sables mouvants
TV EPISODE