Hangman

In Monroe, Georgia, Detective Ray Archer leads police in pursuit of a speeding van. Confronting the driver, Archer notices a pendant dangling from the rear-view mirror. One year later, reporter Christi Davies accompanies Detective Will Ruiney to the scene of a murder: a teacher has been hanged outside her school, with the letter “O” carved into her chest. Inside, they find a classroom staged by the killer, with two mannequins playing “hangman”, and Ruiney and Archer’s badge numbers carved into a desk. The now retired Archer joins the investigation, and Captain Lisa Watson warns Davies not to interfere. The coroner reveals that the victim, Carrie Cooper, had frequently been treated for broken bones. Searching Cooper’s apartment with Davies, the detectives determine that Cooper was dating someone named Joey Truman, and find her bedroom covered in blood, with BDSM equipment in her closet.