The Exorcist plot
Father Tomas leads a small but loyal parish in suburban Chicago. On the other side of the world, Father Marcus is employed by the Vatican to settle the war against its enemies. At first glance, the Rance family has a very normal suburban life. But Henry Rance doesn't like it anymore. His eldest daughter Katherine refuses to leave her room. Her younger sister Casey thinks there's more to it and hears strange noises coming from her sister's room. Ultimately, it is Mother Angela who, ravaged by demonic nightmares, enlists help from the church. The two priests are their last hope.