In World War II they were code-breakers at Bletchley Park; brilliant, invaluable members of an elite team whose task was to crack German intelligence. Their success was their downfall. Seven years after helping to win the war they are housewives, mothers, girlfriends, shadows. Bound to the Offi cial Secrets Act, their part in the Allied victory cannot be told; their fi nest abilities covered in dust sheets of security never to be seen again – until… Can yesterday’s code breakers become today’s detectives? The ladies of Bletchley Park are about to fi nd out as they track down a serial killer terrorising women; attempt to save one of their own from hanging for a murder confession; and become caught up in human-traffi cking and murder when they infi ltrate a brutal Maltese gang. It’s a hard and dangerous world their brilliant minds are entering. They have the heart, but will they have the strength to survive?