کتاب Strange Case of Dr Jekyll and Mr Hyde

First published in 1886 “Strange Case of Dr Jekyll and Mr Hyde” is a gothic novella by famous Scottish writer Robert Louis Stevenson. The story investigates a strange occurrences between Dr Henry Jekyll and the evil Edward Hyde. The novella has such cultural impact that the phrase "Jekyll and Hyde" is vastly used to refer a person who acts differently in moral character from one situation to another.