Isabella Thomas has a problem that she can't take care of. Her brother is a compulsive gambler that can't say no to the rush of another big win?despite Isabella's losses from bailing him out.

This time, Isabella has no house, car, or funds to give up for collateral and her only option is Elijio Vargas, the Beast of the Darkness, a man cursed to walk in the daylight as a wolf. The Beast chooses to save her brother?under one condition: Nate's debt is now Isabella's, and the new deal is for her body.

Isabella can't stop herself from giving in to Elijio, and he can't stop himself from remembering that he does have a heart, and she's quickly stealing it. Will Isabella be saved, or will Elijio have to show just how much of a beast he can be?