Now that the Monks have control of the Earth, those who see the real truth are jailed for memory crimes. It also appears that the Doctor is their chief of propaganda. When Nardole shows up at Bill’s apartment, they go off together to get to the bottom of things. This is the best we’ve seen of both characters so far.
Bill’s heartbreak and confusion are immense, pushing her to the breaking point, and ultimately convincing her to shoot the Doctor. In the moment where he starts to regenerate I almost believed it, but of course, it was only an elaborate test to prove that Bill had shaken the influence of the Monk induced mind control.
In this season the social commentary has been loud and clear. The Doctor is a hero and has always been humanity’s champion, but now because of a crisis of their own creation, the citizens of Earth must be brave enough to solve their own problems. Bill represents all of Humanity and does just that.
Missy tells us that “good” is “vain, arrogant and sentimental.” Maybe it is, but as she finds out in her tearful recollection of all those she has killed, good comes with a price.