Skinwalker

Luther Sweetwater joined LifeEnders—a government-sanctioned group of assassins—with the best of intentions. He wanted to protect America, eliminate the worst of the worst, and maybe even be a hero.

Now, he's facing his deadliest assignment yet, he's moving in with his girlfriend. Teri Warden, who's not only his romantic interest but also the boss's daughter. Explaining that to her mom (aka his boss) was already stressful enough. Then the government called.

A domestic terrorist is tearing through the country, leaving a trail of bodies—and it's up to Luther and Teri to stop the killer.

But this isn't just any psychopath. Their target appears to be a vampire, one with the ability to rewrite its DNA using the blood of its victims.

Which begs the question: How do you catch a killer who's never the same person twice?