Mysterious Mr. Moto

The second of the eight films comprising the MR. MOTO series. The League of Assassins is a group of vicious European killers. Lorre is out to break the gang by infiltrating it. He poses as a prisoner on Devil's Island and gets in good with gang member Ames. The pair escape from the infamous prison and Lorre becomes Ames' houseboy. This makes him privy to all the goings on, which he relays back to Scotland Yard. After witnessing a few murders, Lorre realizes that the gang leader always has a street musician play the tune "Madrid" whenever he wants to signal other members to commit murder. The League tries to blackmail rich tycoon Wilcoxon but he refuses to listen to...