The Bletchley circle : cracking a killer's code
DVD TV SERIES
English subtitles for the deaf and hard of hearing.
Anna Maxwell Martin, Rachael Stirling, Sophie Rundle, Julie Graham.
[Boston] : PBS Distribution, 
Title from container.
Originally broadcast as television miniseries in 2012.
Special features: over 25 minutes of bonus interviews with the cast and crew.
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.