In a desolate future, long after the nuclear war, practicing medicine is illegal. Health care is provided by Healers who treat patients using primitive methods like chanting and bleeding. Hank is a doctor who practices medicine only for himself and his family. His fear of being sent to prison has estranged him from the Underground, the loose network of physicians that tries to help people who have lost faith in the Healers. Then late one evening a 16-year-old girl named Gina knocks on his door. She has a secret of her own and the power to destroy Hank's life if he doesn't come with her and make her seriously ill father well. But there is one catch-Gina's father is the brother of a Healer.