The story's main character, Dr. Jekyll is a knowledgeable, respected celebrities. His extraordinary ability, good-natured, and everywhere respected.But in JEKYLL Dr. hearts in his pious exterior lurks the evil character of an eager pleasure. Because he wants to maintain a false solemn demeanor in front of people, he must always hidden and suppressed their own ugly desire for the pursuit of pleasure. Over time, he became a person with a dual personality. This pent-up desire to eventually lead to a terrible metamorphosis, so Dr. trying to pass in the form of crime to vent. Later, he invented the seed chemicals, people taking it will make physical changes become undersized and ugly; With the physical changes, people's sense of morality will gradually lose eventually turned into a demon characters . Whenever Dr. Jekyll by hedonic For temptation, he will be placed on this medication, to become undersized ugly Mr. Hyde. An evil force takes control of his body, prompted him to go out to have fun, and would do bad things; returned home after serving a syrup, he turned into a respectable Dr. Jekyll. So that he not only satisfy their own sinful desires but also not responsible for any consequences. Dr. Jekyll can own two natures separate themselves from the mental pain. However, human nature can not be so long-term separatist down, this method of self-deception is doomed to end in failure. Really did not last long, this change gradually lose control, Dr. Jekyll find myself involuntarily becomes Mr. Hyde, but to change back to the original Dr. Jekyll instead to serve a large number of drugs. Finally, drugs run out, Dr. found that he could not be changed back to the original, but only as sinful Mr. Hyde Eternity.