the strange case of Dr jekyll and mr hydeWatch
-Victorian London: large emphasis (especially in upper class) of the idea of public vs private - "immoral" actions such as drinking etc were not exactly accepted but you could do them in the privacy of your own home, whereas in public you had to repress any "unacceptable" desires/habits. In terms of the book, Jekyll has to repress Hyde when he's in public, but as Hyde he disregards this idea and is unrestrained in his public behaviour
-A significant example of the setting is the duality of the door to Jekyll's house/lab compared to the street - the dark, run-down house with few/no windows compared to the vibrant, friendly street it resides in -- symbolic of the evil residing in the good, or the dislike of the people for the house could represent the dislike for anything deemed socially unacceptable or 'evil' and this links to the hypocrisy of the time as most people were committing the same 'sins' at home, yet frowned upon it in public.
Hope this helps