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Episode 1
1/6Puzzle setter John ‘Ludwig’ Taylor’s life is upended when his identical twin disappears.
Episode 2
2/6Whilst trying to decode his brother’s notebook, John is distracted with another case.
Episode 3
3/6A new case takes Ludwig on a walking tour of Cambridge. Meanwhile, Lucy goes undercover.
Episode 4
4/6A body falls from a building site. Unable to prove foul play, John questions his skills.
Episode 5
5/6John investigates the death of a headmaster. A shocking revelation leaves him reeling.
Episode 6
6/6A cryptic call sees Lucy lured into danger. Will John’s cover finally be blown?
