Peter Lorre was normally cast as a ruthless villain in noir detective movies, but his appearance as the Japanese Mr Moto allowed him to portray the heroic international detective for eight films. John P Marquand's creation was known for his skill in Jujitsu and his mastery of disguises and aliases. In Mr Moto's Last Warning a man calling himself Mr Moto is abducted and murdered after disembarking from a ship at Port Said in Egypt. However, the real Mr Moto is already in Port Said to investigate a conspiracy to blow up the French fleet as it sails into Port Said and implicate the British government in order to provoke a diplomatic incident. Mr Moto has to tread carefully amongst the double agents, conspirators, innocents and even a ventriloquist's doll so that he can prevent the outbreak of war. An absorbing and exciting film; this is definitely Lorre's most successful outing as the Japanese policeman.