Kun identtinen kaksoisveli katoaa, John Taylorin on astuttava tämän saappaisiin poliisivoimissa. Älykäs mysteerisarja, jossa palapelimestari joutuu ratkomaan elämänsä suurinta arvoitusta – ja samalla oikeita murhia.
Puzzle setter John ‘Ludwig’ Taylor’s life is upended when his identical twin disappears.
Whilst trying to crack his brother’s notebook, John is dragged along to another grisly case.
A new case takes Ludwig on a walking tour of Cambridge. Meanwhile, Lucy goes undercover.
A body falls from a construction site causing John to question his abilities.
John investigates the death of a Headmaster. A shocking revelation leaves him reeling.
A cryptic call sees Lucy lured into danger. Will John’s cover finally be blown?