After the slow and painful death of his wife Mary, Adam, a Vietnam veteran, is left broken and alone. As Father McCarthy administers last rites and Nurse Delilah offers comfort, no one suspects that Delilah is actually a cult disciple - and Mary's death is just the beginning of something much darker. Strange events begin to unravel: bloodstained symbols appear in churches, confessions hint at an underground cult, and Father McCarthy is drawn into a spiritual war he's unprepared to face.