He, Alois Pech, a doctor of philosophy, is a fierce and independent mother's pet who works as a prison librarian. She, Marcela Johnová, is a confident, energetic and successful girl from high society. While she lives in the big world, surrounded by luxury and admirers, he lives a quiet, modest life with his caring mother. They are introduced by a completely random late-night phone call from one of Marcela's guests in her apartment. Although she finds the pleasantly awkward man primarily an amusing diversion in her life of pleasure, Alois falls in love with the girl and begins to seek out opportunities for further encounters.