The Triumph of Sherlock Holmes, 1935 film

The Triumph of Sherlock Holmes is a 1935 British mystery film directed by Leslie S. Hiscott and based on The Valley of Fear by Arthur Conan Doyle. Sherlock Holmes and Dr. Watson come out of retirement to investigate a mysterious murder. They find that an American criminal organisation called The Scowrers has asked evil mastermind Professor Moriarty to wreak vengeance on John Douglas, the informant who sent them to prison. Holmes outsmarts Moriarty, solves the murder and brings Moriarty to justice.