Joan has been searching for her missing husband, Victor, for nearly a year, ever since that terrible night they'd had their first serious argument hours before he mysteriously vanished. One morning, Joan hears a shocking sound coming from inside a revival tent in a gritty Walmart parking lot. It is the unmistakable voice of Victor. But he doesn't seem to recognize Joan at all. He insists his name is Eugene Wolff, and that he is a reverend whose mission is to spread the word of Jesus and grow His flock. Yet Joan suspects there is something dark and terrifying within this charismatic preacher who professes to be a man of God, something old and very dangerous.