Two neighbours with similar names, Paweł and Gaweł, meet a violinist girl Violetta who pretends to be a child. When Paweł learns she's not a child anymore, he falls in love with her. And vice versa.
After becoming a licensed engineer abroad, Lucyna comes back to Poland and looks for a job. Because her wealthy father thinks it's inappropriate for a girl to work, she decides to put on men's clothes and get a job as Julian Kwiatkowski.