Lankester Merrin, an archeologist and former priest, is sent to East Africa to excavate a buried church, which sparks his fascination due to its ancient origins predating Christianity in the area. Accompanied by a young priest, Father Francis, Merrin meets a young doctor, Sarah, and is drawn into an eerie atmosphere at the site, forcing him to confront his lost faith and ultimately face the devil.

Exorcist: The Beginning
In the heart of East Africa, a young priest named Father Lankester Merrin engages in a fierce spiritual battle against the malevolent demon Pazuzu, ultimately reigniting his faith.