Despite its sensationalist title, an excellent little documentary about a spectacular KGB operation in the 1970ies against its German counterpart BND. Because everyone in the BND was primed against divulging information to the communists, the KGB cleverly posed as a ring of old Nazis in Southern America, who were interested in the goings-on in the "old country", and targeted a spinster secretary whose father was one of the "old boys". It worked like a charm until someone snitched the secretary for her surprisingly frequent and extravagant holidays.
I think the documentary strikes a good balance between being tactful and still delivering the goods.