The Doctor incarnation is a novel written by Robert Louis Stevenson. In Victorian times, although Jecker had a virtuous fiancee, he was aroused by a dissolute woman to become Hyde. He studied and invented a medicine, which incarnated into Mr. Hyde after taking the medicine, and the doctor gave Hyde all his evil thoughts. Dr. Keeker has been practicing medicine for many years and has a good reputation for doing many good deeds, while Hyde has done all kinds of evil. Dr. Keeker could not get rid of Hyde and finally chose to commit suicide.