We think that the story of Ursula Kuczynski is so wild that if it were a film rather than real life you would have to have to deploy a lot of suspension of disbelief to enjoy it. Ursula, or Sonya to use her agent name, was a German born communist who spied for the Soviet Union. A lot of her best work was done from a small village in Oxfordshire. Honestly the overview of it reads like a cross between Miss Marple and Tinker, Tailor, Soldier, Spy. But it has been claimed that Sonya was one of the best spies ever recruited by the Soviets, so mostly not very Miss Marple at all. It has to be read to be believed. So read it.