[United States] : PBS Distribution, 
[Blu-ray version ; widescreen version]
1 videodisc (135 min.) : sd., col. ; 4 3/4 in.
Blu-ray disc; stereo. ; requires blu-ray player.
In English, with optional English (SDH) subtitles.
Title from container.
Anna Maxwell Martin, Rachael Stirling, Sophie Rundle, Julie Graham.
Writer, Guy Burt; director, Andy De Emmony.
Originally broadcast as episodes of the British television series in 2012.
Four women who worked as codebreakers at Bletchley Park have taken up civilian lives. Susan has collated data about a series of murders. She tries to convince the police she knows where another body is, but they are unable to locate it and dismiss her. She turns to her three friends and they work out where the next victim will be taken, find the body, and then decide they are the only ones who can track down the killer.
Special features: Interview with cast and crew.
Bletchley circle. Season 1
Bletchley Circle (Television program)