It happened quickly. Overnight, the greater Los Angeles area found itself in the horrifying grip of a werewolf epidemic. Twenty-eight days of the month, those who change are no different from those who have managed to stay uninfected—the normals, the High Bloods. But every full moon, they become the most ravenous creatures mankind has ever seen.

A new law-enforcement agency keeps tabs on those whose blood runs Lycan. Rawson is a agent for Lycan Control, making sure all the afflicted are found, monitored, and kept locked up the night they change. But the Lycans in Hollywood have risen to cultlike proportions, and Rawson's job is getting tougher.

One night a woman changes right in front of Rawson. And it's not a full moon. Someone deep in the bowels of Hollywood has managed to rewrite the rules of the werewolves' existence. Battling a rising tide of Lycan-rights activists and a growing population of those who choose to become Lycan, Rawson must carve a path to the top of the Lycan food chain before all hell breaks loose.