Two painful decades after the brutal murder of two priests and a nun by the hand of Maria Rossi during the exorcism performed on her, Maria's daughter, Isabella, is still looking for answers. Intent on getting to the bottom of this tangled mystery, Isabella visits her glassy-eyed mother in Rome along with her cameraman, Michael, only to leave empty-handed, and shocked. Now, only two unconventional young priests, Fathers Ben Rawlings and David Keane, are willing to carry out the dangerous purification ritual; however, the unseen adversary is powerful, and he will put their faith to the test. Is Maria Rossi, indeed, suffering from mental illness or is the Devil inside her?—Nick Riganas