Rent The Bletchley Circle (2012 - 2014)

The Bletchley Circle is a historical drama/thriller which centres on a group of four female code-breakers adjusting to life as housewives in post-WII Britain; discovering a code in a recent spate of murders that has hiterto gone unnoticed by the police Susan (Anna Maxwell Martin) turns to her friends and former colleagues, to help her crack the murderous code, and save the next potential victim.