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John Taylor lives in quiet solitude, designing puzzles for a living, under the nom-de-plume of 'Ludwig'. When his identical twin, James, disappears off the face of the earth, John takes over his brother's identity in a quest to discover his whereabouts.
First Air Date : Jan 01, 1970
Last Air date : Jan 01, 1970
Episode : 6 Episode
Season : 1 Season
Runtime: 48 minutes
Studio: BBC One
Country: United Kingdom