Julie (Betty Grable), a beloved singer, is married to songwriter Marty Stewart (Jack Lemmon), who disappears while serving in the Korean War. Eventually, Julie assumes that her husband has died and marries Marty's closest pal, Vernon Lowndes (Gower Champion). Vernon and Julie have a happy marriage until Marty suddenly arrives back home, alive and well. The two men are at one another's throats, and Julie is mortified -- that is, until she realizes there may be an advantage to having two husbands.