Just wondering.
The last one to scare me so much that I had to stop watching was The Descent, I watched it in early 2007. I was home alone and it was 1am.
After that I never found a movie that scared me quite the same way. Drag Me To Hell and Cabin in the Woods were both delicious, but not terror-inducing. They were outstanding.
I think I've made my point...anyways. I'm looking to get scared again.