Ferdinand Robert

Country Dr. Robert Koch is desperate: a tuberculosis epidemic is decimating the children in his district and no one is able to do anything about it. Every fourth child is already sick and the parents must helplessly watch as their young ones die. Now Koch is undertaking to find the cause of the tuberculosis --- something he has already been working on for years --- which has been causing this plague of illness. His work is made more difficult by envy; for example, that of his teacher, who was wounded defending his honor. But his greatest obstacle is the famous Berliner scientist and Reichstag deputy, Privy Councilor Rudolf Virchow: He is extraordinarily skeptical of Koch's theory, that the cause for tuberculosis is a bacteria.

Peter Korff isn't a famous actor yet, but he is young, handsome, adventurous – and once again hopelessly in love. The object of his affection is named Erika and works as a model at the fashion salon "Yvette." Although the pretty young woman claims to be just as in love with Peter as he is with her, she's always up for a little fling behind his back.

Wolf Noltenius is a real globetrotter. Early on, this talented young man travelled far and wide, where he earned fame as a construction planner. He moved to Brazil; but one day, homesickness got the best of him. He spontaneously travelled back to his hometown to visit his brother Werner and his family. Wolf and Werner, who both went into the same profession, couldn't be any more different: the one is worldly and an experienced man-about-town; the other a small bourgeois.

After her brother is sent to Siberia, Sonja heads to Moscow to participate in a revolution.

In a transport museum, the items on display begin to tell their stories. Most interesting is the history of the Pullman car. In the beginning, it served as transport for a princely family; then became the headquarters car for the military high command; and then, most adventurous of all, it ended up with a circus. Converted to a bar, it finally had its day and was supposed to serve as a placard carrier. Luckily, the museum saved it from this sad fate.

Best friends David and Philip have to end their love affair with their mistress Aimée which they - not knowing of each other - share, because they are going to marry their sweethearts Gaby and Viola. Of course Aimée will not accept her defeat. She interferes the engagement of Gaby and David, which lead to some turbulence and change of horses before they all end up in their honeymoon.

The marriage of the celebrated operetta diva Vilma and the chamber singer Peter has come to an end. Peter, however, is intent on winning back his now ex-wife. So he’s come up with the idea of a guest performance in Venice, where the two will both appear. Vilma, however, has already found a new man – Niki. He’s a salesman and she wants to marry him. With the help of Annemarie, a friend, who has won a trip to Venice, Peter succeeds in diverting Niki, for he falls in love with Annemarie. Now the way is free for Peter to win back the ex-wife, who couldn’t care if he lived in a hole six feet underground.

During the Prohibition the US government has been just as successful at stopping drinking as they have been in the War on Drugs. Customs Officer Arne Kolk is determined to stop the alcohol smugglers at any price.