I understand completely, why do I have to see boobs and a bong for it to be a horror flick!? Though these aren't rampage blood and gut I like there to be a little bit to think about afterwords so maybe some of these will be to your taste.
Here's a few I like:
Sleepy Hallow- A classic
Seven- Very Mature not lacking substance
Thirteen Ghosts- a few boobs but not in an erotic way though there is a lot of blood.
1408- makes you think
The others- not horror completely but still pretty good comparatively
Secret Window- Underrated in my opinion
The Silence of the Lambs- Just brilliant
Jeepers Creepers- Don't watch the second though it'll just disappoint you
Slaughter- Not blood and guts twist at the end
The Decent- One of my top picks, though a very dark movie.
Maybe you'll love them maybe you'll hate them, either way I hope I helped..