Breakneck marks the return of Detectives Mary Catherine (MC) Riggio and Kitt Lundgren, partners in the police department's Violent Crimes Bureau in industrial, blue-collar Rockford, Illinois. The two detectives are faced with tracking down a monster unlike any they have encountered before. The clean, seemingly emotionless kills leave MC and Kitt little but the growing string of victims to follow—all young adults, clean cut, kid-next-door