Recruited in Cambridge before the Second World War, Joan Stanley provides the Russians with atomic secrets. Many years later, in her old age, she is unmasked. Supposedly based on the true story of Melita Norwood.
The period feel is effective and the story unfolds with a degree of tension. The role cannot have challenged Judi Dench, playing as she does in one of her typical modes of acting; yet she does it with such skill and aplomb that we can only admire.
The young Joan, ably played by Sophie Cookson, is written as a cipher who fails to provide the audience with psychological engagement. I would have preferred the ‘old Joan’ scenes to bookend the earlier time-period and allow that drama to open out without the constant intercutting.
Espionage dramas set in this period have proliferated of late(Traitors, Summer of Rockets) and this one offers nothing original in concept or construction.