Gabriele Bordersen, a woman from a good home, wants to see what real life is like among the common folk. With her stewardess Fanny Flint and the tour guide Simikry, she goes off to visit a sailors' bar. Fanny and Gabriele change clothes, which allows the stewardess to introduce herself as a fine lady. When Gabriele asks Fanny to leave with her, Fanny begs her to give her an hour more out of fear of embarrassment. Gabriele, however, is thrown out of the bar by the owner without money and papers; is picked up by the cops; and suffers a nervous breakdown, leading to her being sent to a hospital. No one believes in the slightest that she's really Gabriele Brodersen.

The physician Dr. Deruga is suspected of having poisoned his wife out of greed. She died after naming Deruga, poor and in debt, the sole heir in her will. There are a lot of people willing to testify against him in court, including Marta, the dead woman's best friend. Only his niece Mingo believes him to be innocent and goes out on her own to prove it.

The Minerva Mines Company is interested in transporting two particularly valuable diamonds from Cape Town to Amsterdam. To confuse potential thieves, two detectives are sent on two different ships with steel suitcases and they have no clue whether they’re carrying pebbles or diamonds. Nevertheless, a collection of questionable characters come on board both ships. The hunt for the diamonds begins; the suitcases are stolen; everyone is suspect.

Melodrama about an entrepreneur and his family.

In Stockholm a young female law student investigates a series of jewel thefts that have been baffling the police.

Irene is unhappy because her lawyer husband Dr. Leuttern never has time for her. Womanizer Mac Norris slyly benefits from her depression and lures her to his apartment. As she struggles to fend him off a shot is fired and Mac collapses.

Eduard Winkelmann, the owner of an apartment building in Munich, never tires of making life difficult for his renters. One day, a young woman, Erika, shows up at his door. She is the illegitimate daughter of a long-past love affair.