For vampire Colleen O’Hara, work is also play. She hunts demons not just for the paycheck, but also for the thrill of the fight. It’s better than sex, at least the sex she’s had so far. But then she meets Seth, a smoldering-hot shadow demon. With him she feels an undeniable, untamable urge to blur the lines between ally and enemy, predator and prey. Meanwhile, as the barrier between hell and earth grows weaker, threatening thousands of human souls, Colleen must track down the traitor who opened the rift. Only with Seth at her side can she defeat the villain. Colleen must risk everything—including her soul—to both follow her desire and save her city from impending damnation.