In the story, Dr. Jekyll makes some scientific experiments and develops some potions by mixing up various salts and fluid matters and crystals. The resultant he gets tempts him to swallow it and he takes courage to act upon his inner impulsive voice. The effect of this simple act is that the doctor?s personality is transformed from a tall, kind socialite human being to a short deformed, cruel creature which he calls Mr. Hyde, and who as such seems to have got a full-fledged personality of his own quite apart and different from that of Dr. Jekyll. Jekyll?s transformed personality, Hyde, was effectively a sociopath?evil, self-indulgent, and utterly uncaring to anyone but himself. Initially, Jekyll was able to control the transformations, but eventually he.