The `Monster of Florence`, Italy`s answer to Jack the Ripper, murdered seven couples in secluded areas outside of Florence over a period often years, from 1974 to 1985; he left behind mutilated corpses and a media frenzy. United in their fascination with these chilling, unsolved murders, bestselling thriller writer Douglas Preston and Italian crime reporter Mario Spezi decided to jointly investigate the case. In their quest to identify the killer, Preston and Spezi uncovered a murky world of accusations, suspicion, a corrupt police force and a killer always one step ahead.