The Area X series (Southern Reach Trilogy) is fucked up!
Ok let me give you a couple reasons if you haven't read it
There's this place, and it seems to be growing that has a weird effect on reality and the longer you stay there the stronger the effect. It centers around a lighthouse in a rural area. The government runs experiments but it's hush hush and nobody knows anything about it. BTW it's getting bigger.
People that leave the area x, might be doppelganger or so changed, it's the same to outside observation.
It's seriously a really good stuff and absolutely fucked up