What Are Some Truly Scary Movies?

Okay so I want to watch something that will really scare me.
What I am NOT looking for;
Halloween
Nightmare on Elm Street
The Exorcist
Scream
Anything that is like I Know What You Did Last Summer or whatever
Nothing like One Missed Call
Also nothing before the '80's...unless it truly is worth watching.

I dont care if its American or not. I thought that The Decent was
scary, Paranormal Activity 1  2, Quarantine, The Tunnel. I have seen
thoes and I have seen REC and REC2. And the Grudge and Ring... all
thoes kinda of scary movies.

I also do NOT find movies about murders scary really... Like human
murders I guess.