I am not a big fan of horror movie, but "The Mist" (2007 Movie) was the only horror movie I finished watching.
When I decided to practice making a horror scene, " The Mist" just came up to my mind to be my main reference. Hope this scene I created could bring up your memory if you were also a fun of this movie.
Created with Unreal 5.1 Most of the assets from internet, recreated some of the texture to tell a background story of "bug issues". Lighting with UE5 Lumen.