Monsters of horror and terror exist just off the mainstream reality.
They are out there... you just better hope you never meet them.
If you believe one exists, you must believe they all exist.
They are, in fact... Monsters, All!
So, you say you believe in the existence of God and all the superstition that goes along with it?
You are a dogmatic follower... and you believe God directs everything you do and say!
If god exists, then... werewolves exist and vampires exist and zombies exist and ghosts exist!
I have never seen any living trace of the existence of any of these creatures... monsters, all!