|And now, a Banksy, Just because.|
Moffat-Era Tropes: Hostile alien creatures hiding in plain sight as everyday objects; Doctor-lite episode; aliens targeting specific people; cryptic utterances which turn out to be threats; something strange and possibly fatal happening to the Tardis; stalking zombie-type creatures; the Doctor as scourge of monsters; the Doctor coming up with insulting nickname for his companion's male friend; the Tardis' siege mode looks a lot like a miniature Pandorica.
A Thing in a Thing: An alien species, and their victims, in the walls.
The Doctor is A: man who stops the monsters.
The Master Is A: fan of Apple products.
Clara Lies About: She doesn't technically lie to Danny about what she's up to when he calls, but the ideological distinction is pretty thin. The Doctor finally confronts her for having lied to him about Danny last episode.
Reasons Clara Should Drop Danny Like A Hot Potato: Because she describes him as “territorial”, and because a lie this big never does any relationship any good.
Child Count: None (if Rigsy's working a community service order during normal business hours, he must be too old for school).
The Thick of It: The Doctor really gets into his alien-destroying bit at the climax.
It's Actually About: Intentions. It's not what you do, it's what you mean by it.