Marianne is an accountant, but since she is so pretty the employment agency sends her to the theater. There, Max's gaffer falls in love with Marianne and persuades her to stay at the theater. Once he has to defend her against a professional boxer who harasses her. Although Max loses his position, but receives an offer from Box Manager Schmidtchen. When Max learns that Marianne is engaged, he goes to Schmidtchen's boxing school in Hamburg.

At the last performance of the Barszony Circus in Hamburg, the Indian lion-tamer Sikkim Khan is attacked by a tiger and is badly wounded. That he got away with his life at all is due to the quick action of the circus director's daughter, Tamara, who shoots the tiger. From that point on, Tamara appears as "Sikkim Khan" and the "Diamond King" van Houten falls in love with her. On a ship of the South American Line, they meet and get to know each other better. When an emerald worth half a million is stolen, Tamara declares herself to be the thief, so as to protect an old colleague of her father, who wants to save the circus with the money from the stolen jewel.

At the behest of the financially strapped Duke, his nephew, Crown Prince Rudolf, is to marry someone of suitable rank. But Rudolf has no interest whatsoever in his uncle's plans and works under his commoner's name as an engineer in a car factory. Then a certain Count Rasumirski appears before the Duke and explains that the famous operetta diva Vera Naldi is actually a Russian princess who knows nothing of her origins. They hatch a plan to marry Rudolf off to her. But at the theater, Rudolf falls not for the singer, but for the secretary. Instead, Rudolf's other uncle begins to take an interest in Vera. Then, however, it turns out that Rasumirski is an imposter and Vera is not a princess at all...

Against her father’s wishes, the ringmaster Wallner, Helga forms a connection with the wild animal trainer Peter. After he is almost killed during an appearance, he promises his mistress, that he’ll never work with wild animals again. From that point on, he works with Helga on safe horse numbers. When Helga finds out from Peter’s friend Otto, that Peter would rather work with wild animals again, she doesn’t want to stand in the way of her beloved’s dreams. Helga disappears and leaves Otto enough money to buy Peter a new group of lions. For a long time, Peter and Helga do not see one another, though neither can forget the other. When Helga hears from Otto one day, that Peter is practicing a very dangerous number involving wild animals, during which Otto is to play the “lead”, Helga makes a fatal decision, so she might see Peter again.

Robert is almost the epitome of a head waiter: Politely and courteously, he informs guests about the goings on in the stock market as well as what’s going on in politics, the world of culture, and the economy. Now, Robert is in love with Lilo, the daughter of Hillmer, who owns a fashion salon, and wants to marry her. Lilo is all bananas for the idea. She doesn’t know what Robert does for a living; only that he does business with her father. The bananas turn sour, however, when she finds out he’s “just” a head waiter! She’ll never marry him; and like the cowardly superficial trash that she is, she asks her father to break the news to Robert.

An attempt to mimic the artistic success of Urlaub auf Ehrenwort and zwei in einer großen Stadt though it's neither romantically nor in a patriotic way as involving. Three soldiers on very short home leave visit Berlin. One isn't from there and runs around with his guide book being perplexed by all the things that are different now. Another visits his wife and his baby. And the third enters a romance due to a mistaken identity which at the end provides a tiny bit of drama in a film which otherwise bends over to show how happy the home front is and supportive of its soldiers. Some nice location shooting, but neither story nor stars amount to much.