The Bletchley Circle
Cracking a Killer's Code: Part 1
E1 Sep 6, 2012 45m TV-14
When Susan Gray spots a hidden pattern in a series of murders, she tries to inform the police. But when they and her husband insist she forget her theory Susan enlists her wartime friends to try and track down the murderer.
Where to Watch Cracking a Killer's Code: Part 1
