Nancy Rimmington is the daughter of the famous Commander Rimmington of the British Navy. One day, her friend, Alicia Courtney, arrives at her house and explains that she has assisted the Russian ballet dancer, Petrovyan, in defecting, and that he is at the moment in the trunk of her car. Nancy and Alicia have to distract Nancy’s father while they sneak him into the house. He ends up going fishing, but then an official arrives with a letter for him. Gerry Buss, Nancy’s fiancé, ends up impersonating him, and all hell breaks out. Ultimately, with all the craziness going on and an aborted escape attempt through the chimney, Petrovyan decides that it would be better to go back to Moscow rather than live in Britain.