How did five people from a small Georgia town contract a rare, deadly disease? Medical researcher Allison Stewart has to work against the clock to find out. Yet before she can ask one question, someone tries to kill her. A handsome recluse who is shrouded in suspicion saves her. Many believe Luke Garrison is guilty of a decade-old murder-a murder with ties to Allison's case. Allison dares to work closely with Luke. But is she setting herself up to become victim number six?