Derren Brown: Trick or Treat
Derren Brown: Trick or Treat
Madman (1x4)
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In the main plot, Derren's "trick"-victim is Steven, whom he gives a taste of temporary lunacy. Side plots include Derren showing to Martin Freeman the power of new age crystals and a group of bankers guessing the number of pieces of candy in a jar and coming up with a numerical equivalent.