But what is the connection? Why Stephen? Could the killer be someone that he arrested years earlier - driven by revenge? Or is the killer Stephen's hometown friend who showed up just as the murders began? The killer is always one step ahead of them, as if he knows exactly what they are thinking. Could he even be a fellow police officer?

When an old girlfriend becomes the latest victim and a call from the killer is traced back to Stephen's apartment, only his new-found connection with a rookie police officer, Kristina Zurkowsky, manages to keep him from completely losing control.