"In Robert Louis Stevenson's nightmarish, suspenseful, and deeply disturbing novel, Dr. Jekyll experiments with a drug that splits his personality into good and evil elements. Gradually, he loses control of the process and finds himself slipping more and more frequently into the guise of the evil and depraved Hyde. Finally, Hyde is accused of murder, and the good doctor, tormented by the struggle between good and evil that he embodies, is forced into an act of violence by his tortured conscience." - product description.