Father Townsend, a devoted husband and priest, is devastated when his wife. Emily, is diagnosed with a terminal disease. Feeling abandoned by his faith, he decides to go against his beliefs and seeks to have Emily possessed through exorcism, in a desperate last bid to save her life. All seems well until terror strikes his heart, as he realises his actions have accidentally released a series of vengeful souls, seeking to unleash evil. Now. he must make the ultimate sacrifice or risk the almighty anti-Christ rising from the depths of hell.