https://screenrant.com/black-mirror-scariest-episodes-halloween , https://screenrant.com/tag/black-mirror
Of course one doesn't have to wait until October to enjoy these episodes.
https://baylorlariat.com/2011/09/27/mirrors-are-main-player-in-shakespeare-works-writes-professor
"In his comprehensive study of mirror imagery in medieval and early modern English literature Herbert Grabes dedicates a chapter to the study of Shakespeare’s seventy mirror passages. Grabes claims that even though Shakespeare’s mirror imagery covers conventional territory, he often “exploits conventions of metaphor, extending, varying and combining them contextually and enriching them functionally.” https://link.springer.com/chapter/10.1007/978-1-137-12004-5_6
