An ex-servant becomes a lonely Shepard, killer hidden in the mountain woods during wartime. Under disguise of a black marketeer, a woman from the town maintains steady connection between the town and mountain, and organizes a resistance movement. Shepard falls in love with her, but suspects that she possibly wants gold instead.
In the moment when Belgrade industrialist Života Cvijović had dreams to marry off his son Milorad, Doctor of Philosophy, to a minister of transport's daughter, a telegram from Milorad's professor from Heidelberg arrives, saying that he wants to visit them. Bad luck is that Velimir, a poor student, was financed by Milorad, and studying under his name received a diploma.