In his experiments , he succeeds to producein producing a potion to divide a man's good side formfrom his bad side. whenWhen he drinks it , Dr. Jekyll finds out his bad side is ana pure evil, ugly, amoral man name Edward Hyde. Not only is his psyche different from Dr. Jekyll, but also his body is shorter than Dr. Jekyll, itIt is a metaphor for his loss of reputation. Edward Hyde just like Dr. JekyllJekyll's best friend who helphelped him to do what he cannot do in theeveryday society . Edward Hyde becomes more powerful than his 'good' counterpart day by day. "Jekyll and Hyde" as an eponymous term has become a synonym for multiple personality in psychology, and this setting supportsupports the split personality.