Filmed in Shrewsbury Prison, Shropshire, UK, you can visit it and even stay overnight if you wish. The prison's last convicts left in February 2013, it is now an interactive and immersive historical site.
Real-life wife Hannah Walters plays Stephen Graham's on-screen spouse in this show
On Tuesday, 22nd March 2022, the British Broadcasting Corporation announced that they have commissioned a 3-episode second series of the drama with further details to be announced.
Sue Johnston's husband in The Royal Family, Ricky Tomlinson actually spent time in Shrewsbury Prison in the 1970's as part of the Shrewsbury 24 trade union colleagues who were convicted for picketing. Time was filmed at Shrewsbury Prison.
Filming on the Runcorn & Widnes Silver Jubilee Bridge in Episode 1, took place whilst the bridge was undergoing significant development. The filming took place after the work was completed but before the bridge was reopened to the public.