Suggest me a dark mystery/horror/thriller that was published in the last five years (ish)

Perhaps all three combined (but not necessarily)?! This is a genre I haven’t delved much into. And for whatever reason I do really enjoy newer/contemporary works. I am a huge fan of mysteries of all shapes and sizes. Sadly, I have never read anything by Mr. Stephen King. I have read the 7 1/2 Deaths of Evelyn Hardcastle and really enjoyed it, minus the underwhelming conclusion (imo). Open to any and all suggestions. Thanks ^^