When Kenan, an incubus, finds a caged angel for sale in the Hellsgate marketplace, he sees her as a challenge. Certain that his skills in seduction will work as well on a heavenly creature as they do on mortal women, he buys Jahel, intent on having her soul as a novelty in his collection.
Knowing he must gain Jahel's trust if she is to come to his bed willingly, Kenan treats her more as his guest than as his slave. When she reveals what brought her to the mouth of Hell in the first place—retrieving the soul of a young girl she was guarding—he even offers to help her complete her mission.
Though he has promised Jahel freedom, Kenan soon realizes she has captured his heart instead. And as their passion for one another grows, they find themselves caught in a struggle between Heaven and Hell, one that will lead them to the very edge of the apocalypse...