German-language remake of the 1929 film of the same name. Broadway showgirl Mary Dugan is charged with murder in the knifing death of her wealthy lover and goes on trial for her life. When her defense counsel appears to bungle his job, Mary's brother Jimmy, a newly-licensed attorney, jumps into the case to defend his sister. Jimmy's courtroom style is unconventional, but he seems to be holding his own against the prosecuting attorney—until a surprise testimony changes the course of the trial...

On the eve of the Russian Revolution, a performance of "Tosca" is taking place at the opera house. The artists and staff are too engrossed in their work to notice the unrest in the streets. The leading roles are played by Marina Marta and René Areno, who are also lovers. However, Marina has another admirer in Captain Alexander von Harbin. When, during the final performance, the insurgent communists suddenly storm the opera house, Alexander seems to be Marina's last hope…

Sergeant Hans Albers, the terror of Chicago gangsters, is transferred South of the border to deal with bandidos.

Olga, a woman of the demimonde, is shot in her apartment. The bullet was deflected by something, otherwise it would have killed Olga. Witnesses heard a noise at 2 p.m. that sounded like a gunshot. Detective Heidenreich investigates and discovers that the perpetrator must have been one of the tenants in the building. He realizes that many people are suspects.

In New York, boxer Eddie Steele has a promising career ahead of him. But this makes him reckless, and he prefers nightclubs to training. Eventually, his reckless lifestyle becomes his downfall. After some reflection, he emigrates to Germany, opens a sports school in Berlin, and allows his favorite student to benefit from his own experience.

There's a great deal of excitement on a small North Sea island: A millionairess has arrived, accompanied by her elderly secretary. No one knows why the lady is vacationing here of all places. It's particularly strange that Ellinor, as the sophisticated city woman is called, is snooping around everywhere. She's being watched suspiciously by all the islanders. But it's all just a game! In reality, the elderly secretary is a millionaire – his name is Jan Remmers, and he left his home island many years ago to pursue a career overseas. Now he's returned, but he doesn't want to reveal his identity until he's found out whether the community would welcome him warmly even without his millions. Unfortunately, Remmers discovers that no one is expecting him in his old home: His former fiancée, Berta, has married the fisherman Hinnerk, and his son, Peter, is a very independent engineer. Proud of his son, Remmers is secretly supporting a major construction project Peter is working on.