Decorated homicide detective Ray Archer partners with criminal profiler Will Ruiney to catch one of the city's notoriously vicious serial killers, who is playing a twisted version of murder inspired by the children's game Hangman. Every 24 hours, a body is hung revealing the next letter carved into the victim's body. As crime journalist Christi Davies reports on the crime spree, the trio must race against the clock to prevent further murders. Archer and Ruiney become more entangled in the ruthless game than they could ever have imagined, but they must keep playing to save lives and attempt to catch the Hangman.

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