On New Year's Eve 1900, Paul Holzgruber started a new praxis as a radiologist. The young Maximiliane Frey is his assistant and they have worked side by side for years helping people. Holzgruber repeatedly points out the dangers of radiation to Maximiliane, but is silent about the ulcers on his hand and the severe pain they have caused. Maximiliane has gotten to know the widower Axel von Bonin and has fallen in love with him. But then she is diagnosed with incurable cancer. To spare Axel the inevitable grief over her impending death, she leaves him and dedicates what is left her life to medicine.

The Hungarian noble Nikki von Kormendy is traveling incognito as a blind passenger on the Danube ferry "Fortuna". Captain Korngiebel keeps him busy with various tasks. When the young singer Anny Hofer comes on board, both men fall in love with her and compete for her affactions. Out of sheer jealousy, Korngiebel lets his ship run aground and now fears for his captain's license. But Kormendy generously acquires the boat and leases it to Peter and Anny ... with the sole condition that the ship bear his name from this date forward.

René and his two artist friends lead a meager but careless life in a Parisian small apartment, their main worry being to avoid the housekeeper. Whenever they get some money they call more friends in and celebrate. This is how he meets beautiful but fragile Denise, who wants to be a singer as himself, and they fall in love. Yet when she finds out her real condition she takes a drastic decision which will determine their fates. La Bohème arias, and more.

A famous racing driver must give up his sport and take over the management of the porcelain factory on incentive of the vigorous grandmother as the last shoot of an old businessman's family. Unrecognized he is regulated as a worker what a love story with a 20-year-old worker arises from, who leads after incidents in the happy end. - After Franz Lehar's operetta produced comedy