Frankie Paige (Patricia Arquette) is in her twenties. She works as a hairdresser. She has a  Frankie Paige (Patricia Arquette) is in her twenties. She works as a hairdresser. She has a boyfriend. There are a hundred other girls like Frankie Paige within a mile radius of her apartment.
   But unlike all of them, things happen to Frankie -- terrible things she can’t understand or explain. And though she has tried everything to make them stop, they’re just getting worse. She goes to doctors and psychologists, but even they can’t answer the most important question: why her?
   At the darkest moment of one of her episodes, a chance encounter with a local priest is caught on tape and the frightening implications of the incident drive the Vatican to send their own investigator, Andrew Kiernan (Gabriel Byrne). Confronted with the powerful force that has taken control of Frankie, Kiernan immediately recognizes the true danger she is in and he must search his own soul for the strength to save her life, even if it goes against everything he believessave her life, even if it goes against everything he believes

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