"Filmaker Rudolph Herzog succeeds in putting across the full drama of this daring adventure [...] In the stillness of one's sitting-room, one is nothing short of amazed - and how often is one truly astonished in front of the television?"
BERLINER ZEITUNG

"Rudolph Herzog's documentary offers deep insights into the world of East-West espionage with all its turmoils."
FRANKFURTER ALLGEMEINE ZEITUNG

a symphony of pristine images
Film of the Year.
-TIME

”meticulously researched and thrillingly told – reading this is as informative as it is spine-chillingly entertaining"
DIE ZEIT