Doctor Who: Memory Lane

On the plus side, the setting for this starts out suitably weird, simultaneously vast in size, and yet utterly claustrophobic. There's also some good use of Charley's background later on. Unfortunately, the explanation for what's going on is basically rather silly, and this badly lets the play down when it's taken as a whole. There are good scenes, certainly, but the overall story doesn't work as well as it should.