It's early February in Blue Hill, and Anne Gibson is surprised to receive a Valentine's Day postcard from an exotic locale addressed to her late aunt Edie. What puzzles Anne even more is the year-old postmark. The sender, whose scrawled first name is illegible, references a reunion at an undisclosed location in two weeks. Anne doesn't want the mystery correspondent to travel halfway around the world for a meeting that can't happen, but how can she figure out who this person is in time? Meanwhile, Anne must deal with Liddie's extreme enthusiasm for Valentine's Day as well as Ben's dread of it. And everyone in her life seems to be pushing her to attend the annual sweetheart dinner with Alex. But does she want to risk their friendship when she's not yet ready for romance?