John Guillermin had just started his career a a British director when he made this trifling B picture, from a neat screenplay by Alec Coppel who wrote scripts for many major films and was Oscar-nominated for the Alec Guinness hit 'The Captain's Paradise'. Their star, Herbert Lom, a refugees from Czechoslovakia (who played Napoleon twice in his long career and the psychiatrist in the sensational 'The Seventh Veil') was here a suave butler who, with his seductive wife Ingeborg Wells (later, I believe, a Hammer Horror star), tries a spot of blackmail on erring couple Hugh McDermott and Brenda Bruce. Canadian McDermott is somewhat OTT, and Bruce, a gifted comedienne, isn't quite glamorous enough, but the film (a bit risqué for 1951!) is rather good fun and doesn't outstay its welcome. Some of the action must have been on a liner (I last saw the film in the year of its release!) because children's TV favourite Humphrey Lestocq is cast as a purser.