Six scientists gather at the eerie Headstone Manor to explore a peculiar phenomenon linked to a horrific massacre that occurred years ago, when 18 guests lost their lives in a single night. As they delve deeper into their investigation, they uncover dark secrets about the manor, revealing it to be a hub for a sinister satanic cult led by a malevolent monk. With their lives at stake, the scientists must confront the cult’s terrifying intentions and navigate the haunted legacy of the house, where evil lurks around every corner. As tensions rise and the atmosphere thickens with dread, they realize that they are not just studying the past—they are caught in a deadly game orchestrated by the forces of darkness.