Thriller/Horror recs that AREN’T paranormal??

Hi boundlings and happy fall!! As we move into spooky season, and as a thriller lover especially, I’m looking for your best recs for thriller/horror books that aren’t paranormal!! I prefer to steer away from those and I find with most lists/quests I have to really sort through to find what I’m looking for, and even then some books can be hit or miss. I can usually do as far as werewolves/vampires but that’s it. I also can do some gore but nothing too extreme (Stephanie Perkins’ There’s Someone Inside Your House is like a perfect example of my limit). Thanks in advance!!

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