This post contains spoilers for Black Mirror: Bandersnatch.
The new movie-length "choose-your-own-adventure" episode of Black Mirror, titled Bandersnatch, feels like it never ends. It does eventually, but as soon as you get to the ostensible finish of the story about a young video game programmer (Fionn Whitehead) driven mad by his own creation, it gives you more options to go back and rework the finale. That's also when it starts to get hilariously meta. Netflix -- which may or may not have built an elaborate Christmas movie universe -- starts to acknowledge its own role in this whole thing.
The basic premise of Bandersnatch follows Whitehead's Stefan Butler as he attempts to program a game based on a choose-your-own-adventure novel of the same name. The writer of said novel, Jerome F. Davies, is famous for decapitating his wife. In the initial permutations, the tale ends gruesomely: Stefan, convinced he's the victim of mind control, murders his father. Depending on what he decides to do with the body (and whether or not he gets caught) his game reaches various stages of completion and levels of success. In one of these paths, there's a hop forward in time where the daughter of Will Poulter's game making savant Colin Ritman decides to remake "Bandersnatch" despite the curious circumstances surrounding its inception. There's a chance, she says, she could be working on it for -- guess who! -- Netflix. But Netflix's presence is going to get a lot bigger once you hop back in time.
Prompted by the screen, you head back to an earlier moment in which Stefan, unnerved by what he's experiencing, asks "Who's there?" The viewer must pick between a symbol that appears in the work of Davies, which you also may recognize from the horrifying Season 2 episode "White Bear." The other is P.A.C., based on a theory that the "pac" in Pac-Man is an acronym for "program and control." But in re-experiencing the moment, you're presented the glyph, again, and now "Netflix." Click "Netflix," and that's where the story starts to get amusing.