4. The Girl Next Door
This film doesn't haunt because of alleged involvement of the supernatural. It does so because it shows how beastly man himself can become. The movie brings to fore the real agony that Sylvia Marie Likens had to suffer through at the hands of her neighbour, Gertrude Baniszewski. The helpless victim of circumstance was kidnapped and locked in a cellar for days. She was tortured with the use of heated needles. She was given only crackers to eat and prevented from using the toilet. After multiple beatings, burnings and suffering from severe malnutrition, Likens succumbed to brain haemorrhage and died. She was sixteen. This is a movie on the list that does most justice to the story it has been derived from. There is very little exaggeration. The film stays with you for days after you've seen it and scars your deepest fears. The Girl Next Door goes to show that the worst horrors are often committed by humans themselves.