[permo-w]

"red room" seems to be a recurring term in creepy stories. I can only specifically recall this and those dark-web stories you hear on clickbait youtube channels, but I feel I've heard it in other creepy/negatively-emoted settings too

[bitwize]

H.G. Wells wrote of a red room as well in a "creepypasta" of his own: https://en.m.wikipedia.org/wiki/The_Red_Room_(short_story)