A famous composer has to prove his innocence when his wife, who has mysteriously disappeared, is shot dead in the street one day.

Rosika, a girl from Genoa, fled her innkeeper stepfather after he tried to abuse her. She finds refuge - and a job as well - in a traveling circus. Cherubini, the owner of the big top, falls in love with the lovely young woman and makes her the star of the show 'Light Cavalry'. But unfortunately for him Rosika's heart beats for Geza, the stable boy.

The young doctor Dr. Virginia Larsen fights in vain against malaria on an island in the Antilles. She finally receives support from Dr. Dos Passos. The doctor persuades the rebellious natives to get vaccinated. They even help to dispel the suspicion of murder weighing on Dos Passos.

Since he falls for beautiful Rosina, the Almaviva count is questioning his Donjuanesque life. He resolves to travel to Seville to seek advice from famed Figaro, who is much more than a barber.

After the death of his wife and mother of his 17-year-old daughter Gisela, Consul Brückmann is now in his second marriage to the beautiful Peruvian Tessa. She is only ten years older than Gisela, and the two have a very friendly relationship. At a ball, Gisela dances with the charming Fernando Alvarez, but she shows no interest in his advances. Tessa, however, recognizes her childhood sweetheart in him. The consul invites Fernando to his table, but neither of them let on. When Alvarez later comes to her house on business, Brückmann is absent and Tessa gives in to his advances. They plan to return home together. Tessa then learns that the train she thought her husband was on has derailed. Now she knows that she still loves him. When he stands in front of her, she tells him everything. Deeply hurt, he wants to let her go. Only Gisela manages to bring them back together.

Two men try to build their own house for the weekend.

Hermann Krullmüller wants to wallpaper. He refuses the help of the housemaid's boyfriend, and of course everything goes wrong. His son Paulchen, who is always in the way, and the silly, giggling housemaid add to the general confusion.