The Doctor ties a rope around his body, and Cassandra attaches the solutions to it, so they hang off him like whatever the opposite of a suicide bomber is. He repurposes the elevators -- which are still "working," just not "moving" -- and he attaches himself to the elevator cable and invites her aboard him; she finally squeals and hops onto his back and they zoom down into the lift. "You're completely mad!" Cassandra groans. "I can see why she likes you." At the bottom of the shaft, the Doctor orders her to hold a lever. Brrr. He combines all the solutions into the elevator car's disinfectant tank, okay. And then he tells Cassandra to hold the lever and drops into the car itself, and this is what he says: "I've got an appointment. The Doctor is in."
The Doctor drops down into the elevator car, and opens the doors with his sonic screwdriver. Beyond are all the infected people, huddled in groups, moaning like zombies. They see the Doctor and begin to approach; he calls to them. "Pull that lever!" he shouts, and the elevator commences Stage One Disinfection. And like: that's all it takes. The zombies get soaked by all the medicine, and then they're better, and then everybody touches everybody else, and the Doctor giggles, and Cassandra's like, "What did they pass on? Did you kill them?" But no, because this week it's faces and touching. And the Doctor goes on playing Jesus to the lepers in his head, boasting about how he made them all, "a new sub-species...a brand-new form of life," and he grins at them lovingly, but after last week I don't trust him. "Grown by cats, kept in the dark, fed by tubes, but completely, completely alive!" He points at Cassandra and demands her validation: "You can't deny them, because you helped create them! The human race just keeps on going, keeps on changing!" Life will out, et cetera. I really do like this episode, but I think you kind of had to be there. It's very shiny and everyone is very enthusiastic.
The NNYPD finally arrives, and the hospital is aswarm with cops when the Doctor and Cassandra get upstairs. Novice Hame is being led away by a police officer; she catches the Doctor's eye, but he doesn't smile. He does, however, remember the Face of Bo, and drags Cassandra there. Face of Bo looks a lot better now. "You were supposed to be dying!" says the Doctor. The Face of Bo tells them, through telepathy, that there are "better things to do today." Cassandra, predictably, hates telepathy: "Just what I need, a head full of Bigface." The Doctor shushes her, and the Face of Bo -- out of nowhere -- explains that he's "grown tired with the universe," but that the Doctor has "taught" him to "look at it anew." I don't know what the hell is going on now.