"R-113654-9."

Special features: Includes over 25 minutes of interviews with cast and crew.

Originally broadcast as single episodes of a television program.

Director, Andy De Emmony.

Anna Maxwell Martin, Rachael Stirling, Sophie Rundle.

With an extraordinary flair for code breaking and razor-sharp intelligence skills, four seemingly ordinary women become the unlikely investigators of a string of grisly murders in this original thriller, set against the backdrop of post-war London. It?s 1952 and Susan, Millie, Lucy and Jean have returned to post-war domesticity, modestly setting aside the part they played in the Allied victory. Their brilliant work at top security HQ Bletchley Park helped crack the codes used by the German military, producing crucial intelligence that shortened the war. Susans conventionality masks a sharp, inquisitive mind. She may appear every inch the typical 1950s wife and mother, but when she hears about a string of unsolved murders in London, Susans old Bletchley spirit is ignited. Unaware of her background, the police dismiss Susans theories causing her to realise that the only way she can solve the murders is with the help of her friends. A race against the clock ensues as the women work to outwit the culprit. Can they rekindle their singular expertise and discover the killers next move before he strikes again?

Rating: M.

PAL ; Region 4.

In English. Subtitles in English. English captions (Descriptive subtitles for hearing impaired)