When a Priest discovers his wife is deathly ill, he decides to go against his faith and use his knowledge of exorcisms to possess her in order to save her life. Problems arise once he realizes his actions may have evoked the lost souls of all of the people he lost during his time as an exorcist. And now those same lost souls are out for revenge, as they seek another vessel to unleash the ultimate evil. He must now make the ultimate sacrifice or risk the emergence of the anti-Christ.