Captain Mary Morley (Paulette Goddard), WAC marital-relations expert, known as "Captain Lonelyhearts", returns from overseas as escort to some G.I. war brides, and she hopes to patch up the estrangement from Peter Morley (Fred MacMurray), her husband and former law partner. The latter has fallen for beautiful Gloria Fay (Arleen Whelan) and is waiting at the airport with a divorce consent requiring Mary's signature. Peter, hoping to be more persuasive later, asks her to have dinner with him later at the Ski Club. Jack Lindsay (Macdonald Carey), a client of Peter's who has been using their apartment mistakes Mary for one of the intended bridesmaids and asks about Gloria. Now that Mary knows about Gloria, she asks Jack to bring Gloria to the Ski Club dinner. Still in love with Peter, Mary refuses to sign the divorce paper and asks Jack to take her home.