A clergyman becomes precariously involved in the murder of a college student whose remains have traces of the way the infamous Zodiac killer terrorized Southern California - and the nation. But wasn't that case solved years ago? The startling fact: No, it was not LAPD investigators, who badly need Rev. Dr. Chase Fischer's expertise in ancient history, form an unorthodox arrangement with him to lure the killer out of hiding, and end a potential spree. Will this unlikely alliance finally be able to solve an ancient mystery? Leave it open as they found it? Or is something new and more sinister disturbingly afoot?