在血腥峡谷中，黑暗潮水无情吞噬一切生灵。人与犬zooskool

　　6 friends decide to find solitude outside of Detroit for Halloween, but they soon find themselves trapped in a nightmare they can't awake from. Hunted by a masked killer through cemeteries, corn mazes and haunted houses, they are picked off one by one. Who is this insaniac?