Stefek is a smart 6-year-old, living in a small Polish town; his sister Elka is eighteen. They live with Mother, since Father has moved in with another woman in another town. Mother works in a store all day long, Elka washes dishes in a bar, but studies Italian and competes for an assistant job in an Italian firm. The boy spends time accompanying his sister and her fiancé Jerzy, a car mechanic. She imparts to her kid brother all the knowledge she learned at motivational courses about how to create the world around him. How can you make a paper bag thrown beside a trash get inside the can, as it should have? What to do to have an apple seller, ignored by customers, sell his supply at one swoop? Stefek is a quick study and, consequently, his first experiments in giving order to his surroundings - though naïve at first glance - turn out to be efficacious. Yet this is only an overture to the riskiest experiment, though fraught with gravest consequences. One day at the railroad station, Stefek notices a man similar to his father, whom he does not remember well. Leaving for work every day, the man transfers to another train. What to do to make him stay longer one day? And how to lead him to the door of the store where Mother works? Stefek designs a meticulous plan and tries to carry it out...