From the Publisher - Dubbed the master of medical suspense by The New York Times， Robin Cook has been a favorite ever since his frightening bestseller Coma. In his latest tale， he continues that tradition of fast-paced， exciting and terrifying storytelling....Young， healthy people have been dying after what seems to be successful， routine surgeryand New York City medical examiners Dr. Laurie Montgomery and Dr. Jack Stapleton suspect foul play. Despite resistance from superiors and the residents at Manhattan General， Laurie pursues her own investigation. Though it seems impossible to determine why and how the patients are dying， she comes to believe that not only are the deaths relatedtheyre intentional， suggesting the work of a clever serial killer with a very unusual motive.Then Laurie is dealt a double blow: While coping with Jacks inability to commit to their relationship， she discovers she carries a genetic marker for a deadly disease. As her personal life unravels， the need for answers becomes more urgent. And when Laurie becomes the killers next target， she and Jack must race to connect the dotsto stop a madman and save her life.