Wonderful idiot Paul Litchfield is the guest on this affectionate look at one of the modern classics of Doctor Who. What will be to his liking - the murder of a young girl, public schoolboys being racist, or our hero advocating capital punishment. Oh yes, there's much to recoil at in this episode, and all of it something that shows the dark side of...ahem... human nature. But Paul and host Toby Hadoke are jovial fellows so there's light amongst the darkness. Unless that is, they aren't quite being themselves...