A man who owns a diamond importing business goes out for a night on the town with his girlfriend, her brother and her brother’s fiancé. The group stops by a circus to see the act of a trapeze artist who’s a friend of the man’s girlfriend. The performer suggests that all the men go out for a few drinks, and the next thing the businessman knows, he’s waking up in his apartment with a terrible hangover and a dead body in his room.
The rich and jung American Susanne falls in love with the Student Hans-Joachim. Set in the romantic Heidelberg.
The girl Marianne inherited a motorboat called “Eintracht” from her parents and struggled to get her to drive it with her uncle. There is a row with the new engineer Michel the evening after the first trip. He leaves - out of jealousy. Instead of him, Marianne takes three funny musicians with her who are looking for work. The trip to Hamburg on the Elbe initially ends on a sandbank, from which another barge, the "Petrel", frees them. Michel has now been hired there. After a few complications and pointless fights, because Marianne has long been in love with Michel, there is the well-deserved happy ending.
Azerbaijan, 1919. The British hope to secure control of the vast oil fields around Baku by launching a series of terrorist attacks on them. Hans Romberg, a German who is working as a security officer, battles with the British chief agent Captain Forbes and his associates. (Description from Wikipedia)
The young, attractive Inge Wagner becomes acquainted with Herbert Koch during the Berlin Olympics, his flight officer insignia having first caught her eye. Sparks fly immediately between the two and they soon decide to marry. But Herbert is called off on a secret mission in Spain.