Does living evil walk among us?
Demons don't exist - at least not according to Cole Garza, sheriff of a small Gulf Coast town. He doesn't believe in much of anything since the day his wife was killed.
When the French priest Francois Domaine walks into his life claiming that a recent mass murder was the work of a dark force, Garza doesn't know what to think, let alone believe. He only knows that the mysterious stranger seen around town at the time of the slaughter bears an uncanny resemblance to the priest's claim that living evil moves in our midst. The two men form an uneasy alliance, both determined to find the murderer.
Drawn into the web of mystery is Nadine May, an information genius under contract with Homeland Security and the CIA. Socially awkward but interested in a relationship with the sheriff and fascinated by the shadowy power behind the murders, she agrees to add her unique skills to the pursuit - despite her spiritual skepticism and complete lack of belief in the supernatural.
The trio find themselves on a quest for the truth about good and evil, travelling first to Wales and the scene of another mass-murder, then on to the killing fields of Syria where the stakes rise even higher. Now it's not just innocents in danger; they're forced to fight for their own lives.
What they always thought was true might not be. Cole and Nadine must decide whether Francois is right about the nature of the living horror they pursue. If he is, how do you battle this most evil of creatures? They need to find the right answers, because their own lives, and the potential fate of millions hangs on it.