A killer is on the loose, blurring the line between fact and fiction. His prey -- the writers of crime novels who have turned psychological profilers into the heroes of the nineties. But this killer shatters all conventional wisdom, and for one woman, the desperate hunt to uncover his identity becomes a matter of life and death. Professor Fiona Cameron is an academic psychologist who uses computer technology to help police forces track serial offenders. She used to help the Met, but when they screwed up an investigation after ignoring her advice she vowed never to work for them again. Still smarting from the experience, she's working a case in Toledo when her lover, thriller writer Kit Martin, tells her a fellow crime novelist has been murdered. It's not her case, but Fiona can't help taking an interest. Which is just as well, because before too long the killer strikes again. And again. And Fiona finds herself caught in a race against time not only to save a life but to bring herself redemption, both personal and professional.