The Bletchley Circle

Four women, Susan (Anna Maxwell Martin) Jean (Julie Graham), Millie (Rachel Stirling), and Lucy (Sophie Rundle), who previously worked at Bletchley, nine years later, pool their unique talents and resources to solve enigmas and save lives.

This is a period piece, mid 50s London, so they have the clothing and hairstyles of the time. They have to maintain the dialog of the time.

This sis a formula detective series with all the standard who-dun-it's and clues. What makes this series unique is that instead of the inspector and his sidekick, we have the for women civilians using their unique code-breaking skills picked up from working in Bletchley Park during the war, to do the same thing.

Even knowing it is only two seasons it is worth the purchase.

A revival attempt is made with The Bletchley Circle: San Francisco (2018).