Great horror films ease their way into the deepest, darkest parts of our minds and tend to stay there for a while, occasionally rearing their heads at 3AM to prompt a fevered inner dialogue - is there somebody crouching in the corner? This is a list of the most memorable and shocking scenes from such films that creep and crawl their way into our soft, vulnerable psyches; moments we recall years later as we try - against hope - to fall asleep.
Here's a look at 23 of the most disturbing scenes in horror.