Fan Casting Batman

In this universe, Gotham city is what it's always been hinted at. Just absolutely wrong. There's something about Gotham that destroys people, turns them into the worst version of themselves. It's more than just an eerie city that's fallen into corruption and decay. Gotham is a dark god, or maybe a demon, or an eldritch being sleeping, known by another name, Barbatos, who's mere existence corrupts. It unconsciously seeks avatars by digging into the hearts and souls of the residents of the damned city and uses them as instruments of madness. But when a young Bruce Wayne resists the call of the void, resolving himself to become The Batman rather than an instrument of chaos, the slumbering primordial force that is Gotham City, begins to rouse, setting in motion a series of events that turns Gotham city from an organized crime cesspool to the chaotic supervillain carnival it becomes