Netflix link for the lazy. Also Wikipedia, IMDB, rundown, and inevitable chill down the spine.
Oh thanks! The links are great!! Anyone who hasn't seen the episode will otherwise have no clue what I'm talking about... so am grateful for the links. Yes - definitely a spine-chilling concept.
I love Black Mirror. Certainly, as masterful as it is it can be draining. It doesn't always fit within my emotional budget. I can't complain about it, though. I wouldn't give it up for anything. We were due for another Rod Serling.