The relationship between interior evil and its effect of one's external appearance isn't new to the show, but it's explored pretty explicitly in Oscar Wilde's The Picture of Dorian Gray. A much darker affair than The Importance of Being Earnest, this book is the closest examination of morality in Victorian England that we've read since Jekyll and Hyde. 

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.