The Bletchley Circle

Blood on Their Hands (1) (2x1)

Air date: Jan 06, 2014

Former Bletchley Park worker Alice Merren is in prison awaiting trial for the murder of the eminent scientist John Richards. Driven by her belief in Alice's innocence and that she is hiding the truth about John's death, Jean attempts to regroup the circle in order to help establish the innocence of one of their own.