This first sound version of Robert Louis Stevenson's classic morality tale starred Fredric March as the kindly, philanthropic Dr. Jekyll, who makes the fatal mistake of delving into secrets that Man Should Never Know. Fascinated with the notion that within each man lurk impulses for both Good and Evil, Jekyll develops a drug to release the wickedness in himself. The result: the lecherous, lycanthropic Mr. Hyde (one has to keep reminding oneself that the handsome, soft-spoken March plays both roles; small wonder that he won the Academy Award). Jekyll is the honorable suitor of the virtuous Muriel Carew (Rose Hobart), while Hyde is the brutish pursuer of the sluttish "Champagne Ivy" Pearson (Miriam Hopkins, as sexy as she'd ever be in films). It isn't long before the kindly Jekyll is unable to control the wicked Hyde, with tragic results.