The famous operetta singer Jarmila Kšírová tries to hide her marital status from the sensationalist public. The heroine of the story is the star of the big operetta scene Soňa Jansová. For advertising reasons, it is claimed that she is still single and that she even avoids men. In reality, however, the operetta soubrette has been happily married to Dr. Karel Svoboda for several years and even has a four-year-old daughter, Evička. Her husband pretends to be only her legal representative and only sneaks into her apartment secretly...