the dream i had was strange,

it was about a movie called "Cthulhu: Awakening", in which an unnamed town slowly started to go insane after some residents saw a "Green stain" on the earths sky, which turned out to be cthulhu itself.

Those who looked at it directly, or an unfiltered photo of it, would slowly go insane with their eyes turning bloodshot and red, before experiencing sudden onset rabbies and mania before collapsing and dying.

And for some reason there was a Kill Count episode of it.

Heres what i mean by the "Green stain":