A married couple both face temptations while separated for a few days. The husband meets an attractive female fellow traveler in Paris while the wife accidentally spends a night aboard a Royal Navy ship with a male friend after she is stranded following a party. Despite knowing the essential innocence of both husband and wife, their sinister new butler uses information about their discretions to demand blackmail payments.

Cast: Herbert Lom, Hugh McDermott, Brenda Bruce, Humphrey Lestocq, Ingeborg von Kusserow, Basil Dignam