Can someone recommend me a horror/thriller manwha? (no romance and must not be Bl)

Try Spore!
Although idk if there will be romance in the future

Unhinged

Sorry I couldn't recommend more, I don't know a lot of horror/thriller manhwa without romance, only manga.

This question made me realise I don’t read much horror manhwa but:
https://www.mangago.zone/read-manga/pigpen/
https://www.mangago.zone/read-manga/chasing_tails/
https://www.mangago.zone/read-manga/foul_smell/
https://www.mangago.zone/read-manga/dr_hound/