Some of the most disturbing serial killer films have to be those in which children and teens are the eventual murderers. The idea that a human being that is assumed to be so sweet and innocent actually has the capacity to repeatedly kill another is startling to say the least.
I recently watched The Bad Seed which follows a mother trying to uncover the true nature of her adorable blonde daughter and uncover whether or not she is a cold-blooded killer. The film appears hokey and laughable now, but upon its release was probably utterly frightening. It reminded me a lot of The Good Son, which despite being relatively recent, was pretty hokey.
Which films about children gone mad make your skin crawl?