A new case takes Ludwig on a walking tour of Cambridge, where he's faced with an impossible question. Meanwhile, Lucy goes undercover and makes a grim discovery of her own.
Full-time luddite, John 'Ludwig' Taylor, assumes the identity of his missing twin brother in a bid to track him down and bring him home. However, filling the shoes of your identical twin is one thing - when your twin also happens to be a successful DCI leading Cambridge's busy inner-city major crimes team the stakes are much higher. John may be a master of all things cryptic, but can he crack the biggest puzzle of his life?
Ludwig - Series 1, Episode 3 Synopsis and Schedule