 Tomek, a young post office worker, is obsessed with Magda, the promiscuous woman who lives in the tower block opposite. He spies on her through a telescope and finally declares his love. She initiates him into the basic fact of life - there is no love, only sex. Tomek, shattered, tries to commit suicide but doesn t succeed. When he returns from hospital, it is Magda who becomes obsessed with him.