When journalist Catherine Cobb arrives in the East Texas town of Elena, she quickly finds herself fighting for her life. Something is spreading through the population, turning ordinary civilians into murderers capable of committing the most heinous crimes. As the body count continues to rise, Catherine walks into one nightmare after another, uncovering a secret plot involving a group of neo-Nazis, top-level federal government, and the strange world of the occult - with global implications. Before long, Catherine finds herself trapped in a terrifying world that she doesn't understand. And might not escape from.