Tomek (Olaf Lubaszenko) is a nineteen-year-old orphan, living with the mother of a friend and working at the local post office. He has been observing an attractive woman in her thirties, Magda (Grażyna Szapołowska), and fallen in love with her. He sends false notices from the post office to her, calling her to pick up money which does not exist, just to see her. In the evenings, he spies on her through a telescope, as she lives in an apartment opposite his, and calls her frequently. Magda sees many men in her apartment and Tomek manages to ruin her dates by calling the gas service to check a leak.