Cracking The Code

The Bletchley Circle returns to ITV for a mystery-solving San Francisco spin-off.

- Emma Bullimore

NEW DRAMA

The Bletchley Circle: San Francisco

Wednesday, ITV Hd, 9pm

Code-cracking World War Two drama The Bletchley Circle was cancelled in 2014 after just two short series, but four years later it’s back with a transatlantic twist.

A murder in 1950s San Francisco reminds British former code-breakers Jean McBrian (Julie Graham) and Millie Harcourt (Rachael Stirling) of a colleague’s death years before. Believing they can find the killer, the two women – who helped Britain win the war but were forced to return to mundane lives in the years that followed – make the bold decision to travel to the US to investigate.

The four-part series sees the women join forces with two American counterparts, Iris and Hailey (see panel), as they tackle a string of different murder cases.

Here, Graham and Stirling tell us more about the spin-off…

How did you feel when you heard the show was coming back?