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The Bletchley Circle poster

The Bletchley Circle (2012)

Crime · Drama · History

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.

IMDb rating
7.9 (15,608 votes)
Seasons
2
Streaming (US)
Amazon Prime Video · Peacock · Britbox Apple TV Channel · BritBox · BritBox Amazon Channel · The Roku Channel · Pluto TV · Tubi TV · Plex Channel · Fawesome
Language
EN
Type
TV series
Browse seasons by rating shape → Open in Rising Shows app → View on IMDb

Ratings refreshed Jul 3, 2026 · 2 seasons indexed

Cast

Seasons

Season 1 (2012)

8.00 avg 3 episodes 8.0 → 7.9 45 min avg

Ep 1: 8.0 · 693 votesEp 2: 8.1 · 604 votesEp 3: 7.9 · 587 votes
Season 1 episodes — IMDb ratings
#TitleRatingVotes
1Cracking a Killer's Code: Part 18.0693
2Cracking a Killer's Code: Part 28.1604
3Cracking a Killer's Code: Part 37.9587

Season 2 (2014)

7.70 avg 4 episodes 7.7 → 7.7 45 min avg

Ep 1: 7.7 · 497 votesEp 2: 7.8 · 439 votesEp 3: 7.6 · 393 votesEp 4: 7.7 · 365 votes
Season 2 episodes — IMDb ratings
#TitleRatingVotes
1Blood on Their Hands: Part 17.7497
2Blood on Their Hands: Part 27.8439
3Uncustomed Goods: Part 17.6393
4Uncustomed Goods: Part 27.7365

Episode ratings and vote counts from IMDb. Poster, overview, and streaming data from TMDB. Data refreshed 2026-07-03.

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