While monitoring an emergency line, a vigilant FBI agent answers a call that plunges him into a deadly conspiracy involving a mole at the White House.

As Christmas approaches, Paula, a St. Louis antique appraiser, reluctantly accepts a marriage proposal from her boyfriend, Daniel, a career-focused attorney. When her Aunt Jane senses she has mixed emotions over the engagement, she invites Paula to her Nantucket home. Upon her arrival, Paula plans a trip to the nearby island of Martha's Vineyard where she meets a charming inn owner.