Mandy Page, the owner of a used book store, loves Christmas. When she finds a touching letter to Santa stuffed between the pages of an old book recently donated, she decides it would be fun to answer it. But playing Santa might prove difficult since the letter is dated 70 years earlier. Mandy tracks down where the book was donated from, and meets Joe Canton, who agrees to help her play Santa and track down the mystery writer. As they get closer to finding the letter writer, they find themselves growing closer together too. With Christmas fast-approaching, the identity of the mystery writer and love might be the best gifts Mandy can receive.