He feels safe in his cage. But if he escapes, you'll never be safe again. They are the most dangerous mother-son serial killer team in history. "Bloody Mary" Chilmark is certifiable – just ask her doctor. The Darden State Hospital is home to the most dangerous psychopathic killers in the country. But Bloody Mary got out, and raised her baby away from that bad environment. But her son Doc's been arrested, processed, and held at Darden State—and is considered one of the most dangerous of the hospital's inmates. As wildfires burn out of control in Southern California, authorities face the overwhelming task of relocating hundreds of Darden's patients to other prison hospitals before the raging inferno descend In the frenzy, "Bloody Mary" finds her opportunity to free her son. It's up to Trey Campbell and officer Jane Laymon to hunt for the mother-son duo in the dark underworld maze of the old asylum beneath the hospital.