Payback is a bitch and her name is Kali Sweet... I'm Kali Sweet, the best damn vengeance demon on earth. I work for the supernatural world's Justice Department and protect innocent humans from otherworldly creatures like me. While I can't take revenge for myself, I make sure justice is done for others. But when my latest run-in with Chicago's vampire king backfires, the fallout leaves me with three big problems: a powerful Undead enemy who wants my head, my boss looking over my shoulder, and three personal blood slaves jeopardizing my reputation. One of those slaves happens to be sexy rock star Radison Beaumont - the half-human, half-chaos demon who left me at the altar three hundred years ago. Even if he does need my blood now to survive, Rad and I will always be enemies. Especially since he's joined an ancient society of demon killers-and I'm the number one demon on their most wanted list.