为册封圣人部工作的耶稣会神父雅各伯（Martin Shaw主演），专门调查神迹、异象并向教廷推荐封圣候选人。当一位10岁的小女孩试图让他相信其父已被附魔后，他被迫开始了驱魔的生涯。
Martin Shaw
Father Jacob
Rick Warden
Astaruth
Luigi Diberti
Monsignor Vincenzo
John Shrapnel
Cardinal Bukovak
Shaun Dooley
Liam
Siobhan Finneran
Sister Ruth
Michelle Joseph
Sister Anne
Sarah-Jayne Steed
Sarah
William Atkinson
Father William
