There was once an ancient malevolent force that has existed through-out human history. It existed in various forms in different eras. It was always locked in the story which captured as the incarnation of evil of that era. In the late twentieth century, it took on the form of Freddy Krueger from the Nightmare on Elm Street film franchise. When Freddy was killed in Freddy's Dead, the evil entity no longer wanted to be locked away in a story and sought to break through to the real world, our world.