An archaeologist and former priest, Lankester Merrin, is haunted by his past in World War II Holland. He uncovers a Byzantine-era church in Northern Kenya, which sparks a descent into madness among the camp's inhabitants. As tensions rise, two British soldiers are found dead, and the camp descends into chaos, culminating in the possession of a young disabled boy, Cheche, by the devil.

Dominion: Prequel to the Exorcist
Father Lankester Merrin's spiritual conviction is profoundly deepened after a pivotal battle with the malevolent demon Pazuzu in East Africa.