What does this disturbing dream mean (warning: gory/graphic)?

Your mind does really weird things. Sometimes, you can have the strangest dreams without even watching horror movies. But I wouldn't worry about it if I were you. I've lately been having dreams where I've been locked in stone cellars with scary people. But it probably doesn't mean anything. If you are religious, on the other hand, than maybe the devil has been getting to you. If you are, just say a prayer and cross your pillow (that's what I do every night I can). You should be fine :D