When Grace Abernathy's sister is rejected by the Easton family because of her low social class, Grace uses an assumed name to take on a position as nanny for her nephew Christian to see to his well-being, and soon ends up falling for the boy's guardian.

In the aftermath of World War I, Grace hopes to reclaim her nephew, Christian, from the relatives who rejected her sister because of her class. Under an alias, she goes to Toronto and becomes her orphaned nephew's nanny. Observing the family up close, she begins to fall for Andrew Easton, the boy's guardian. Andrew is promised to a spoiled socialite who is sure to make a terrible stepmother. Can Grace protect her nephew ... and her heart?