In 1930s Budapest, naïve orphan Luisa Ginglebuscher becomes an usherette at the local movie house, determined to succeed in her first job by doing good deeds for others and maintaining her purity. Luisa's well-meaning lies get her caught between a lecherous businessman, Konrad, and a decent but confused doctor, Max Sporum. When Luisa convinces Konrad that she's married to Max, Konrad tries everything he can to get rid of the baffled doctor.

An usherette in a theatre, where a distinguished and popular actor performs, gets her big break when the leading actress has an accident. The director decides to take advantage of the heretofore unexploited talent of the girl and asks her to replace the leading actress. This unexpected opportunity transforms her from a humble usherette into a shining star. Later on, she wins the heart of the leading actor with whom she was secretly in love. However, her sudden rise to theatrical-musical stardom creates complications in their love affair, as her companion sinks into disappointment and drowns himself in drink, abandoning his career. Nevertheless, the usherette/leading actress doesn't give up; She looks for him, finds him and supports him, psychologically and morally, until he makes a comeback to the stage and their love nest.