Weird thing I noticed is that the rain doesn't feel or smell the same as it did when I was a kid. Maybe I'm just imagining it, but it seems to me that the rain is stickier. Like, it doesn't dry as fast and leaves you a bit sticky when it does.

The movie "The Dark Crystal" was also about adrenochrome.

If you look beyond the surface plot, a lot of movies have these themes.

This is known as "revelation of the method": their weird mollach religion has a twisted view on karma where they believe blame and wrongdoings can be spiritually nullified or transferred through speech, imagery and 'warnings', no matter how cryptic.