The story of Joan Stanley, who was exposed as the K.G.B.'s longest-serving British spy.
Directed byTrevor Nunn
Written byLindsay Shapero, Jennie Rooney
CountryUnited Kingdom
Runtime101 min
On screen
Judi Dench
Sophie Cookson
Stephen Campbell Moore
The story of Joan Stanley, who was exposed as the K.G.B.'s longest-serving British spy.