In a world where a werecat virus has changed society, Roan McKichan, a born infected and ex-cop, works as a private detective solving crimes involving other infecteds.
Tiger strain infections start showing up all over Seattle, much to Roan's dismay, and worse yet, they may have a personal connection. Meanwhile, Roan gets hired to look into the puzzling death of Dee's former lover. Then the FBI wants him to investigate a new apocalypse cult of infecteds pushing for a violent revolution against normals. All around Roan, events are spiraling out of control. Just when his singular abilities are needed most, Roan develops new symptoms that might signify dire consequences if he doesn't stop shifting at will. Roan finds himself at a crossroads and must make a difficult decision about his future.