I don't know why, but I always confound this film with another one: THE LOOKING GLASS WAR, also a British spying film speaking of Cold War and I remember speaking of a close topic too. Also made in the seventies. This is sensitive, brilliant, rather a bit complex, as any other espionage movie, but that's not THE KREMLIN LETTER either. And what an awesome Dick Bogarde in a delicious nasty manipulator, the kind of character whom you wish to kill by smashing your TV set.