"Why do we find serial killers so enthralling, Professor?", Julie asked.
"They represent something larger than life, something truly cartoonishly monstrous, like the horror stories you're told as a child. Everybody responds to the idea that there's something nasty out there. Fairytales for grownups so to speak. There's something in our psyche where we have this need to tell stories about pursuing as well as being pursued by monsters."