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.
A love story between Stefan, the nephew of a music teacher, and Helenka, the daughter of a wealthy cosmetics industry entrepreneur. Her father remembers the recipe for a new soap thanks to a catchy tune composed by Stefan.
A country girl Kasia Solska is forced by her family to marry the man she finds unattractive. She secretly gets to university, escapes from her village to Warsaw and starts working as a babysitter there.