The film, based on a true story, follows the priest Theophilus Riesinger (Al Pacino) and Joseph Steiger (Dan Stevens) as they try to overcome their differences in order to perform a risky exorcism and rescue a supposedly possessed young woman, Emma Schmidt (Abigail Co 6EN).
Film, ki temelji na resnični zgodbi, spremlja duhovnika Theophilusa Riesingerja (Al Pacino) in Josepha Steigerja (Dan Stevens), ki skušata premagati svoje razlike, da bi izvedla tvegan eksorcizem in rešila domnevno obsedeno mlado žensko Emmo Schmidt (Abigail Cowen).