<Li> Faye Marsay as Lizzie Lancaster (series 2) </Li> <Li> Nick Blood as Ben Gladstone (series 2) Lucy's colleague and love interest </Li> <Table> <Tr> <Th> #</Th> <Th> Title </Th> <Th> Directed by </Th> <Th> Written by </Th> <Th> Original air date </Th> <Th> UK Viewing Figures (millions) Sourced by BARB; includes ITV1 HD and ITV1 + 1 </Th> </Tr> <Tr> <Th> </Th> <Td> "Cracking a Killer's Code, Part 1" </Td> <Td> Andy De Emmony </Td> <Td> Guy Burt </Td> <Td> 6 September 2012 (2012 - 09 - 06) </Td> <Td> 5.81 </Td> </Tr> <Tr> <Td_colspan="6"> Seven years after WWII, four women who worked as codebreakers at Bletchley Park have taken up mundane civilian lives . Susan, now a housewife, has collated data about a series of murders . She tells the police she knows where another body is, but they are unable to locate it and dismiss her . Susan turns to her friends Millie, Lucy, and Jean, former codebreaking colleagues at Bletchley Park . They work out where the next victim will be taken, find the body, then decide only they can find the killer . </Td> </Tr> <Tr> <Th> </Th> <Td> "Cracking a Killer's Code, Part 2" </Td> <Td> Andy De Emmony </Td> <Td> Guy Burt </Td> <Td> 13 September 2012 (2012 - 09 - 13) </Td> <Td> 5.73 </Td> </Tr> <Tr> <Td_colspan="6"> The women collate information about the schedules of trains the victims had been on and use the results to identify suspects . Susan gives the police names of three potential perpetrators . Jean and Lucy discover seven similar murders, elsewhere, that the police in those jurisdictions consider solved, but the women believe innocent men have been framed and convicted . The police arrest a man whose name was given to them by Susan, even after she tells them she believes he was framed . The women devise a plan to trap the actual killer using Lucy as bait, but it backfires when she goes with the wrong man . Another suspect emerges from the Special Operations Executive, headed by Cavendish . Susan comes face to face with the killer at a closed mental hospital . </Td> </Tr> <Tr> <Th> </Th> <Td> "Cracking a Killer's Code, Part 3" </Td> <Td> Andy De Emmony </Td> <Td> Guy Burt </Td> <Td> 20 September 2012 (2012 - 09 - 20) </Td> <Td> 5.37 </Td> </Tr> <Tr> <Td_colspan="6"> Susan returns with the police, but the killer has gone . She finds a coded message in her home with Cavendish's address, and going there finds him dead . A postcard on Cavendish's desk provides a clue; Susan, following the thread, walks alone into a trap set for her by the killer . </Td> </Tr> </Table> <Tr> <Th> #</Th> <Th> Title </Th> <Th> Directed by </Th> <Th> Written by </Th> <Th> Original air date </Th> <Th> UK Viewing Figures (millions) Sourced by BARB; includes ITV1 HD and ITV1 + 1 </Th> </Tr>

The bletchley circle season 1 how many episodes
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