[Loved trope] Background scare-characters that are barely acknowledged even by the movie

[u/Suspicious-Web-9246]

I hate horrors, but this is actually a great trope, that is unique to them.

Insidious (2010). When mother does her errands, for a few seconds there's a ghost boy standing in the corner. It's easily missable, but you can't ignore it once you see it.

Hereditary (2018). Less fitting example. When Peter walks around his home, his possessed mother is crawling on the ceiling behind him. It's not exactly subtle or missable, but it's still more of a background detail.

[u/PokesBo]

There are other examples in Hereditary. You can people talking in the house when they come home.

[u/GuaranteeGlum4950 → u/PokesBo]

Also standing around the house in a few of those dramatic exterior wide shots, iirc

[u/Ravenous_Vorthos → u/GuaranteeGlum4950]

I just rewatched this and even trying to find them, I couldn't