"Memories of the infamous Blood Bath Killer still loom large, especially for homicide detective Angel Alves, who helped bring down the multiple murderer whose rampage shocked the city. So when a pair of students turn up bizarrely slain, Alves fears that another serial killer is stalking Boston. A fear that becomes fact when Alves's ex-partner, Wayne Mooney, recognizes the murders as the work of the Prom Night Killer, whose unsolved crimes have haunted Mooney for a decade. Now, with hands-on assistant DA Conrad Darget backing them, Alves and Mooney set out to stop grim history from repeating itself. But matching wits with a twisted mind is a dangerous game. Especially when there are no rules, and your allies really may be your enemies."--From publisher description.