Tony Dawson, a greeting card writer, has lost his wife, Margo, because he speaks in couplets on the wrong occasions. She plans to marry her boss, a breakfast food tycoon. Tony, in a last ditch attempt to win her back, offers to throw a "no hard feelings" engagement party. His plans are complicated by the arrival of a friend who is a perpetual student, the nightclub singer for whom he is writing special material, and his editor who stops by just before...