Classic comedy starring real-life husband and wife, Tony Curtis and Janet Leigh as David and Ann Wilson. David is a university professor who is kissing one of his students when Ann walks in on them. She demands a divorce. David turns to his old friend, a television writer, Michael Haney (Dean Martin), who cooks up a cover story. They convince Ann that David is working undercover for the FBI, and that the kiss was part of a sting. A series of twists and turns ensues.