Heidi Hawthorne is a 37-year-old FM radio DJ and a recovering drug addict. Struggling with her newfound sobriety and creeping depression, Heidi suddenly receives an anonymous gift at the station - a mysteriously shaped wooden box branded with a strange symbol. Inside the box is a promotional record for a band that identifies themselves only as The Lords. There is no other information. She decides to play it on the radio show as a joke, and the moment she does, horrible things begin to happen.
Allie Hilts was still in high school when a fire at a top-secret research facility released an air-borne pathogen that quickly spread to every male on the planet, killing most. Allie witnessed every man she ever knew be consumed by fearsome symptoms: scorching fevers and internal bleeding, madness and uncontrollable violence. The world crumbled around her. No man was spared, and the few survivors were irrevocably changed. They became disturbingly strong, aggressive, and ferocious. Feral.