It's All Hallows' Eve and Willow Wildes is about to make a deal with the Devil. Observing the time-honored tradition of offering herself in exchange for power, the Wildes witches owe the Devil for their very lives. But when it's Willow's turn to strike her bargain, things turn out a little differently for her...

As the only woman since Lilith to appreciate the Devil in his dark form, the Devil is enamored by the young red-headed witch, and suddenly the Fallen angel yearns to offer her more than any other witch since her ancestor first called upon him in Salem.