Early 18th-century Krakow: The poor student Simon works as a travelling musician in order to finance his studies, and the Polish freedom fighter Jan is on the run from Saxon troops. They meet in the carriage of Count Kovalska, where they fall in love with the Count’s daughters Laura and Bronislava.

Postman Titus Müller returns from his daily rounds with a letter that will change the course of his modest provincial existence.

The famous tightrope artist Truxa is drinking at the Artisan bar in New York. He meets a young man, Husen, and gives him his stage name Truxa. He is to take the real Truxa's place at a circus show in Wintergarten, Berlin.

A Berlin policeman tracks down a group of diamond thieves in the outskirts by posing as a gang member.