Nancy: MOTHER! What's with the bars?
Marge: Security.
Nancy: Security? SECURITY FROM WHAT?
Marge: Not from what: From whom. Come down to the cellar. You wanna know who Fred Krueger was? He was a filthy child murderer, who killed at least 20 kids in the neighborhood... kids we all knew.
Nancy: Oh, Mom.
Marge: It drove us crazy when we didn't know who it was, but it was even worse after they caught him.
Nancy: Did they put him away?
Marge: Well all the lawyers got fat and the Judge got famous, but someone forgot to sign the search warrant in the right place and Krueger was free just like that.
Nancy: What did you do?
Marge: A bunch of us parents got together and tracked him down. We found him in old abandoned boiler room, where he used to take his kids.
Nancy: Go on.
Marge: We took gasoline and poured it all around the place and made a trail of it out the door. We lit the whole thing up and watched it burn. He's dead now. He's dead because Mommy killed him. I even took his knives.