Mr O picks up a busty brunette, XNK0731, and takes her back to his apartment. His wife, Jeanette, XNK0732, catches them at it, but joins in. Next Mr O. is nearly caught by his wife screwing his secretary, Bibi (XNK0507 as a brunette). She demands sex from her hsuband and the secretary listens at the door, before the wife drags her in to join them.

Things may not be fast at the German post office, but they're a lot of fun: postal supervisor Max Sparwein knows a thing or two about it, because he really can't complain about boring and monotonous service on his tour through the city. This is also the experience of journalist Mara Schönwetter, who accompanies him on his walks up and down the stairs to write a report.