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.
David Mitchell
John 'Ludwig' Taylor / James Taylor
Anna Maxwell Martin
Lucy Betts-Taylor
Dipo Ola
DI Russell Carter
Gerran Howell
DC Simon Evans
Izuka Hoyle
DS Alice Finch
Dorothy Atkinson
DCS Carol Shaw
