Every contract with the devil is riddled with loopholes, and Mara Argueta knows that all too well. She hunts escaped demons for him, after all. Now he's limited her life on earth and put her in the hands of an infuriating but handsome demon named Coren.

Mara soon finds herself in more trouble than she can handle. With Lucifer threatening to drag her to hell, Mara turns to new allies, her friends, and help from Coren. As she struggles with her attraction to him, she realizes Coren isn't like normal demons, and his secrets could be her downfall.

She not only has to fight for her heart, but also for her very soul. However, just like deals with the devil, nothing is ever that simple.