Yeah, I lost the plot within five minutes, trying to work out all the acronyms. Judging by the explanation after the show, there must have been a lot of people querying it on social media.
The rest of the show didn't improve either - the usual cock-ups, implausible events, misdirections and...
I suspect Huntley will re-grow her hand, but with a new set of fingerprints, enabling her to frame her husband and his solicitor (who has something nasty hidden in his past).
She did seem rather keen to finish off Dot and his minder, regardless of endangering the public and her orders not to engage them. It seemed as if they suddenly realised it was the last episode and they only had ten minutes to tie everything up, so they decided on a mad climax rather than using...