Polly Parrish (Ginger Rogers) is a salesgirl at the department store John B. Merlin and Son in New York City. Hired as temporary help for the Christmas season, she receives her dismissal notice as the season comes to a close. During her lunch break, she sees a stranger leaving a baby on the steps of an orphanage. Fearing the baby will roll down the steps, Polly picks it up. An attendant opens the door and mistakenly believes that Polly is the baby's mother.