The Salzburg Connection (1972)

"The top espionage agents of Today's Super Powers confront each other in the suspense adventure of the year."

An American lawyer on vacation in Europe is asked by a book publisher to stop by the Austrian town of Salzburg to see a photographer who's taking pictures for a book on picturesque Austrian lakes. Upon his arrival he senses that something is wrong when the photographer seems to have vanished, leaving a near panic-stricken wife and a sinister, secretive brother. Before he knows it, the lawyer finds himself mixed up with spies, assassins, and the hunt for a list made up by the Nazis during World War II of people who collaborated with them.