On Halloween 1976, five carnival workers are kidnapped and held in a massive, hellish compound. They are forced to play "31," a survival game where they must endure 12 hours against a group of sadistic, costumed killers known as "Heads". Key Characters & Killers

The film leans heavily into 1970s aesthetics, featuring classic rock tracks and a grainy, handheld camera style.

The film's primary antagonist, played by Richard Brake, is a notorious and relentless assassin hired to ensure no one survives.