On a ship sailing to Shanghai, Mr Moto unravels a web of mystery when he discovers a steward from his past, now a murderer, trying to steal a crucial letter from a passenger's stateroom. The passenger, Robert Hitchings, falls for a mysterious woman named Gloria, who remains tight-lipped about her past and vanishes upon arrival.
Think Fast, Mr. Moto
Mr. Moto, a detective, investigates a series of mysteries on a cargo ship traveling from San Francisco to Shanghai, uncovering a gang of smugglers behind the chaos.