Classic crime triple bill. 'The Speckled Band' (1931) sees the legendary detective Sherlock Holmes (Raymond Massey) and his assistant Dr Watson (Athole Stewart) investigating the mysterious death of a young woman's twin, who was killed while inside a locked room. 'Silver Blaze' sees Holmes (Arthur Wontner) contesting wills with his nemesis Professor Moriarty (Lyn Harding) after the theft of a priceless racehorse. Finally, in 'Blake of Scotland Yard' (1937), the retired detective Sir James Blake (Herbert Rawlinson) is helping his niece develop a new device that could help prevent wars. Planning to donate it to the League of Nations, Blake instead finds himself investigating its theft after the device is stolen by the mysterious 'Scorpion'.