The suffering pope calls into battle a religious order formed specifically to fight the antichrist. Monks of the order use both spiritual and physical weapons to fight demons that are all too real.
For mature audiences - graphic depictions of violence
Satan has a lot of pride and his feelings are hurt. So many lackadaisical Catholics no longer believe in him.
To make himself known, Satan offers thirteen “epistles.” He states most clearly that he is the inspiration for all the novelties that came out of Vatican II.