Behind her strict facade, mother Anni Wiesner is happy: her daughter Helene, who married a millionaire in America, has come to Germany with her little son on a visit so that Anni can see her grandson for the first time. Son Herbert successfully studies medicine and Anni's husband Karl makes a career with the Berlin tram . Only daughter Inge seems to be the black sheep. Her mother had planned a career as a dancer for her, but Inge earned her money as a waitress and hung around with the musician Adam.