Ayn Rand recommended Strange Case of Dr Jekyll and Mr Hyde, by Stevenson. Although I have seen the movie, I did not realize how bad the movie was until I read the book. It is a short story. Stevenson wrote it in 3 days, and then edited it for approximately 6 weeks. If you have not read it, you should. Miss Rand recommended the story in Fiction Writing, a course that she had given during the late '50's or early '60's (approx.). Let me know if you have read it, or if you do, let me know what you think.