If you haven't seen "The Descent," I highly recommend it. I thought it was pretty fricking creepy without using a lot of over the top special effects, which I hate in a lot of horror movies. I love cool makeup, I just hate "over the top" things happening ala "13 Ghosts" for example. What I love about "The Descent" is it could actually happen, if you think about it. You never know.
and I don't care if critics didn't like it. What the hell do they know anyway? Look at the lousy reviews Good Morning Revival got.