I’m craving something dark that involves murder. Like the show “Dexter” but make it smutty

I love little stranger & the ruinous love story trilogy but I need more. If the book doesn’t have at least 10 triggers I don’t want it. It can have happy endings or it can rip my soul out. I enjoy both equally. TIA EDIT UPDATE: THANK YOU ALL SO MUCH ! It was hard not to buy every single rec, but I ended up buying four! Gosh I love this sub so much!