OK. If you're planning to watch it on iPlayer later, look away now.
Diana Rigg played a lunatic who persuaded the gullible that, if they entered her enclosed community cut off from the rest of the world, they would live in prosperity and happiness and be spared the coming apocalypse.
What the doctor's companions found was that the factories supposed to drive this economic miracle were empty save for loudspeakers playing the noise of busy machines.
And, of course, far from living happily ever after, the residents realised too late that they were being sacrificed to satisfy the desires of the villain.
I can't say if Mark Gattis wrote it with Farage in mind or if it was just a happy coincidence but it was such a relief from all the guff spewing from every news outlet I don't care.