Father Merrin's crisis of faith becomes the backdrop for a chilling discovery when he participates in an archaeological dig near Kenya in 1947. As the team unearths the remnants of an ancient church, they inadvertently disturb something far more sinister—a malevolent force that has been dormant for centuries. Directed by Renny Harlin and featuring Stellan Skarsgård in a commanding lead role, this prequel explores the supernatural origins of one of cinema's most iconic exorcisms, blending historical mystery with visceral horror.