E1 • Episode 1

1. 57min
2. TV-PG
3. CC
4. HD
5. 4K UHD

Puzzle setter John ‘Ludwig’ Taylor’s life is upended when his identical twin disappears.

4K UHD availability depends on plan and device.

E2 • Episode 2

1. 58min
2. TV-PG
3. CC
4. HD

Whilst trying to crack his brother’s notebook, John is dragged along to another grisly case.

E3 • Episode 3

1. 58min
2. TV-PG
3. CC
4. HD

A new case takes Ludwig on a walking tour of Cambridge. Meanwhile, Lucy goes undercover.

E4 • Episode 4

1. 54min
2. TV-PG
3. CC
4. HD

A body falls from a construction site causing John to question his abilities.

E5 • Episode 5

1. 58min
2. TV-PG
3. CC
4. HD

John investigates the death of a Headmaster. A shocking revelation leaves him reeling.

E6 • Episode 6

1. 59min
2. TV-14
3. CC
4. HD

A cryptic call sees Lucy lured into danger. Will John’s cover finally be blown?