I can't really think of a movie I have seen that has had me more terified than this. I read a quote before the movie saying, "The Descent pulls you down into a nightmare that doesn't let you come back up for air until the credits roll." This sums it up perfectly.
All I can say is, I am very glad I saw this during the mid-day!
All I can say is, I am very glad I saw this during the mid-day!