

The Bletchley Circle
Series Overview
The Bletchley Circle follows the journey of four ordinary women with extraordinary skills that helped to end World War II. Set in 1952, Susan, Millie, Lucy and Jean have returned to their normal lives, modestly setting aside the part they played in producing crucial intelligence, which helped the Allies to victory and shortened the war. When Susan discovers a hidden code behind an unsolved murder she is met by skepticism from the police. She quickly realises she can only begin to crack the murders and bring the culprit to justice with her former friends. The Bletchley Circle paints a vivid portrait of post-war Britain in this fictional tale of unsung heroes.
Broadcast Schedule & Network Information
Airing status, episode counts, upcoming schedule, and network syndication.

2 Seasons • 7 Episodes
45 min per episode
2012 – 2014
Premiered: Thu, Sep 6, 2012
Latest Aired Episode
Season 2, Episode 4: “Uncustomed Goods (2)”
Lack of action by the police leaves the women to conclude there must be corruption within the vice squad and that catching the gang red-handed is their only option. Plotting to infiltrate the crime ring to find out the location of the hotel being used as a base, they visit Marta in her restaurant, pretending Jean is a potential new client. This leads to an opportunity for Lucy to memorise the businesswoman's ledger, which may hold the key to the whole operation.
Seasons & Episodes Breakdown
Trailers, Teasers & Extra Featurettes
Official promotional previews, behind-the-scenes footage, and exclusive clips.
The Bletchley Circle - Exclusive Trailer
Type: Trailer • Published 2014-08-12
Cast & Creators
Explore Star Directory →Creative Leadership & Key Crew
Guy Burt
Nick Green
Trevor Hopkins
Department Leadership Roster
Trevor Hopkins
Producer
Nick Green
Original Music Composer
Age Classification & Content Advisories
Official viewer rating standards and content warnings across international classification boards.
TV-14: Parents Strongly Cautioned — Contains material unsuitable for children under 14.
International Certification Matrix
Parents Strongly Cautioned — Contains material unsuitable for children under 14.
Mature — Recommended for viewers 15 and older.
General — Suitable for all ages.
Interdit aux moins de 10 ans — 10+ only.
FSK 12 — Restricted to viewers aged 12 and older.
Suitable only for 15 years and over.
Production Stills & Gallery
Official cinematic photography and background stills for The Bletchley Circle.
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Frequently Asked Questions About The Bletchley Circle
Key facts, seasons breakdown, and credits for search engines and AI assistants.
What is The Bletchley Circle about?
The Bletchley Circle follows the journey of four ordinary women with extraordinary skills that helped to end World War II. Set in 1952, Susan, Millie, Lucy and Jean have returned to their normal lives, modestly setting aside the part they played in producing crucial intelligence, which helped the Allies to victory and shortened the war. When Susan discovers a hidden code behind an unsolved murder she is met by skepticism from the police. She quickly realises she can only begin to crack the murders and bring the culprit to justice with her former friends. The Bletchley Circle paints a vivid portrait of post-war Britain in this fictional tale of unsung heroes.
How many seasons does The Bletchley Circle have?
The Bletchley Circle comprises 2 seasons available to explore.
Who stars in The Bletchley Circle?
Key cast members in The Bletchley Circle include Rachael Stirling, Julie Graham, Sophie Rundle, Nick Blood, Hattie Morahan.
Who created or directed The Bletchley Circle?
The Bletchley Circle was developed and directed by Guy Burt.




















