I really liked this one, too. I was pretty cool on series 1/14 outside of Gatwa being excellent, but so far series 2/15 has been more enjoyable. The signing was very cool to see; I don’t know any BSL so I have no idea how Gatwa did but it looked natural.

The subtitle tech does raise some interesting questions around what has led to it becoming so ubiquitous. I suppose it could also serve as a live translation tool, so it may not be exclusively to support deaf people and instead sort of a low-tech version of the translation matrix. That said, signing being mandated for all medical staff does seem to indicate that accommodations for deafness are strongly favored in Lombardic society.

The final ending scene was a bit cliched though, the episode would have been better to just end with the Tardis dematerialising.

Yeah, how I feel about that part will probably depend on whether it actually gets revisited sometime soon. If it’s just for the sake of a sting ending with no concrete intention to do anything with it, then it’s just doing the thing because it’s a horror story and that’s what they do.

EDIT: One thing the ending did leave me wondering was whether the monster simply jumped off Shaya to Mo, or if there are more than one of them. If Shaya’s sacrifice meant nothing at all, that’s pretty disappointing to me. But if she took it from two escapees to one, that at least gives her death some meaning.