These amazing pictures show a girl named Margret S. who was in a secret love Affair which took place from May 1969 to December 1970 with a Cologne businessman Günter K. Margret was 24 and a red-headed secretary of Günter who was 39. Both were married.

The photos are from hundreds of color and black and white photographs that were found three decades later in a briefcase abandoned in a German apartment. They were taken in various places and poses: sitting at a typewriter at the office, traveling, or in hotel rooms, undressing, changing, or getting dressed...