The child catcher used to scare the shit out of me when I was kid. Still not too keen now!
That's the one.
Too real, so easy to imagine a real one (and there are many), and the one I left the theatre completely hating (as if she were a real person, even though I knew it was just an acted part).
Some villians are likeable (i.e Alex in Clockwork Orange) and that one was infinitely, not.
She something of a cu.nt ain`t she..............................