
Demon 79 is Black Mirror season 6's final episode is potentially the most unique of the bunch. It is set in the 1970s and has the feel of a gritty horror movie.
Unlike Joan is Afraid, Loch Henry, and Beyond the Sea, the last episode of the season doesn't have any prominent technology use at the center of it. Instead, it focuses on 1970s Northern England, the political climate, and some seriously messed up requests.