It was a dark and rainy night, and this old lady, who had a passion for jigsaw puzzles, sat by herself in her house at her table to complete a new jigsaw puzzle. But as she pieced the puzzle together, she realized, to her astonishment, that the image that was formed was her very own room. And the figure in the center of the puzzle, as she completed it, was herself. And with trembling hands, she placed the last four pieces and stared in horror at the face of a demented madman at the window. The last thing that this old lady ever heard was the sound of breaking glass.