What happens when medical appliances use a subscription model? And there are poorly disclosed restrictions? And existing functionality keeps migrating into higher price tiers?

And I'm not even mentioning the worst part because it gives away a major plot point, just ... damn it gets dark. Mostly because it's so utterly believable.

And the B plot about how to pay for it, you see it coming a mile away but it's still horrifying.

This is the best of Black Mirror: A view into the future that you know damn well people are working hard to make real.