Following a catastrophic, failed ritual in a remote Indonesian province, two Catholic exorcists are deployed to confront a devastatingly powerful ancient entity unleashed by an ancestral pact for illicit wealth.

After losing his mother and sister, Thomas plans to resign as a priest but is tasked with assisting exorcist Rendra. Together, they confront demons possessing Kayla, his late sister's friend, while her mother Maya battles a haunting past.