The song "Do You Hear What I Hear?" was written as a plea for peace during the Cuban Missile Crisis in the middle of the Cold War with Russia. Now Christmas is around the corner and live-in lovers Detective Shelley Caldwell and Jake DeAtley are in a cold war of their own. Shelley has all wonderful memories of Christmas, while Jake, born of a mother turned vampire while pregnant with him, has none. They've come to a compromise that she can decorate "her half" of every room, but there can be no Christmas tree. Then a case of hit-and-run leaves a dead body and a magical Christmas tree. With her woo-woo instincts ablaze, Shelley can't resist bringing home the tree, heating up the war with Jake. There is more to the tree than either knows. Will it bring them back together or push them farther apart.