In a world where a werecat virus has changed society, Roan McKichan, a born infected and ex-cop, works as a private detective trying to solve crimes involving other infecteds. Until recently, Roan was ahead of the curve when it came to reining in the lion that lives inside him. Now his control is slipping at the worst possible times. A new drug has hit the streets—one that triggers unscheduled changes in infected users. Street hustler Holden Krause gets attacked by one of his clients, then is surprised to find himself involved in an unwanted, unexpected relationship. And a serial killer begins targeting infecteds in their cat form—something that’s 100 percent legal. To stop the murders, Roan has to work outside the law. But his newfound thirst for violence makes him worry he might be more like the killer than he thought, and his reluctance to talk about it with his husband, Dylan, puts an extra strain on their relationship. So Roan isn’t just fighting the killer and struggling with his mutating virus… he’s trying to save himself.