It was a miracle until a killer turned it into a weapon. When Dr. Chris Collins s estranged father, Wayne, shows up asking her to donate a piece of her liver to save his life, Chris balks. The man walked out on her and her mother twenty-nine years ago, and now he expects her to undergo major surgery and have part of a vital organ removed. She refuses. However, she can t just let him die. So she contacts Dr. Michael Boyer to get Wayne accepted into Boyer s experimental transplant program. The surgery is risky, and the source of the donor liver shocking. However, Wayne has no other choice. It s his only chance to live. The celebration of Wayne s stunning recovery is cut short when two of the nurses on the transplant team suddenly die horrifying, painful deaths. Chris s father has become the unwitting breeding ground for a rogue virus that may be unstoppable. As Chris and Michael Boyer search desperately for answers, a potential epidemic worse than any the world has ever experienced gains momentum. If the virus doesn t kill them first, its creator will.