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David Mitchell stars as John Taylor, whose search for his missing twin takes him inside James's Cambridge police life.
Watch the Series 1 trailer on YouTube →
Published by the verified BBC YouTube channel, 13 September 2024.
John returns as a Crime Scene Consultant, openly applying his puzzle-setting mind to apparently impossible crimes.
Watch the Series 2 first look on YouTube →
Published by BBC Trailers, 12 June 2026.
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