کلیسای کاتولیک در واکنش به افزایش جهانی موجودات اهریمنی، مدارس جن‌ گیری را برای آموزش کشیشان در آیین جن‌گیری بازگشایی می‌ کند و In response to a global rise in demonic possessions, the Catholic Church reopens exorcism schools to train priests in the Rite of Exorcism. On this spiritual battlefield, an unlikely warrior rises: a young nun, Sister Ann. Thrust onto the spiritual frontline with fellow student Father Dante, Sister Ann finds herself in a battle for the soul of a young girl and soon realizes the Devil has her right where he wants her.