When she appears on the doorstep of wealthy widower Maxwell Sheffield's New York home, cosmetics saleswoman Fran Fine unexpectedly gets a job as the nanny for the Broadway producer's three children, Maggie, Brighton and Grace. Fran brings her no-nonsense honesty, sharp sense of humor and "Queens logic" into the Sheffield household, helping them become a happy, healthy family -- a family that Fran eventually joins when she marries Maxwell. Also in the Sheffield household is sarcastic English butler Niles.