Bored with her life in Chicago, vampire Dani DuBois heads to Las Vegas for a little fun. Then she meets demons Kaz Elgin and Ty Cole, and things start to get really interesting. Torn between the attraction she feels for each of them, Dani at first has no idea that the two men know each other. When she runs across the two of them having an argument, she can’t believe they’re both being such men, but they’re both so incredibly hot. After they take care of their rogue demon problem, they decide to take care of Dani—together. Through a dungeon sex club and bondage games in a private room, they set out to discover just how much fun three immortals can have in Sin City.