In this brand new series Derren Brown is at his most devilish, having persuaded members of the public to sign a Faustian pact with him and participate in a macabre game of Trick or Treat . In this week’s opening episode, Richard, having chosen a “Trick” card, is put to sleep in a photo booth in London only to awake again in Marrakech.

Derren attempts to plant a word in the brain of an unsuspecting American and back in the UK he plays a game of fate with The League of Gentlemen involving chocolate mini-rolls…