Doctor Who (2005– )
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A problem happens with the Tardis, trapping the Doctor inside and leaving Clara to fend for herself against a two dimensional enemy.


Douglas Mackinnon


Jamie Mathieson




Episode complete credited cast:
Peter Capaldi ... The Doctor
Jenna Coleman ... Clara
Joivan Wade ... Rigsy
Samuel Anderson ... Danny
John Cummins John Cummins ... Roscoe
Jessica Hayles ... PC Forrest
Christopher Fairbank ... Fenton
Matt Bardock Matt Bardock ... Al
Raj Bajaj Raj Bajaj ... George
James Quinn ... Bill
Michelle Gomez ... Missy


Separated from the Doctor, Clara discovers a new menace from another dimension. But how do you hide when even the walls are no protection? With people to save and the Doctor trapped, Clara comes up against an enemy that exists beyond human perception. Written by BBC America

Plot Summary | Plot Synopsis


TV-PG | See all certifications »

Parents Guide:

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Release Date:

18 October 2014 (USA) See more »

Company Credits

Production Co:

BBC Cymru Wales See more »
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Technical Specs


Sound Mix:



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Did You Know?


This episode is influenced by the 1884 novella, Flatland: A Romance in Many Dimensions by Edwin Abbott Abbott. The novella takes place in a world with various realms of differing dimensions. The main character, who is a square of two dimensions from the land of Flatland, dreams of visiting Lineland, a land of one dimension. While there, he is only seen as a line since the residents cannot conceive of two dimensions. He then has a vision where he talks to Sphere, a character from Spaceland, that has three dimensions, which he can only see as a circle. The connection is that the creatures of two dimensions only see things of two dimensions, and the creatures of three dimensions can only see things of three. Flatland was also the basis of two animated movies in 2007. See more »


The Doctor's hair changes all through the story. See more »


[first lines]
Man in apartment: [into the phone] Police please. Hello?
[voice trembling]
Man in apartment: Yes. I know who did it. Who did it all. I figured it out.
See more »

Crazy Credits

In the opening credits it's usually the Doctor's eyes which are seen but in this episode it's Clara's. See more »


References The Addams Family (1964) See more »


Doctor Who Theme
Written by Ron Grainer
Performed by BBC National Orchestra of Wales
See more »

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User Reviews

A dark and visual delight that satisfies a more mature audience.
19 September 2015 | by Sleepin_DragonSee all my reviews

Clara has got over her issues with the Doctor, and is now at ease travelling in the TARDIS, landing back on earth they find all is not as it should be, the dimensions of the TARDIS go very wrong. Two dimensional creatures are coming out of the walls and out of the floors and killing people, the Doctor is stuck in a miniaturised TARDIS, so it falls on Clara, and young helper Rigsy to try and sort the mess out.

This is one of the most original Doctor Who stories ever, it is fantastic. The visuals are just fabulous, there are so many jaw dropping scenes, the creatures coming out of the walls, as iconic a moment as Spearhead's mannequins surely. The scene of George being taken over was a scary one, utterly brilliant!! The creatures running along the Tunnel too are so impressive, something out of a Horror movie. Doctor Who for grown ups.

Fans of the Addams family will appreciate the moment when the Doctor moves the TARDIS by hand, love it.

Clara continues to grow as a character, she has become a brilliant sidekick for the Doctor. The scene of Missy though, what was her involvement with Clara!!

I totally love it, unique, scary, I must applaud Jamie Mathieson for this and The Mummy on the Orient Express, hopefully he'll be writing more for years to come, FANTASTIC, 9/10

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