 Doctor Palmer, a former pathologist, wrote a fictional book based on his real cases. In the book, the madman gets caught, but in reality he is still uncaught. After the book is released, Palmer s editor is kidnapped. Palmer soon is sent a present containing a page of his book, and a bone from his editor. Together with the police, Palmer tries to find his editor, who might still be alive. In addition, his own son becomes one of the main suspects.