The clever Zacharias Bräsig is a good friend to all and tries to help out, where he can. Bräsig also meddles in the relationships of young people, so that by the end of the film, there's a double marriage.
When Hamburg ship's mate Klaus Brandt catches a thief one night at the port, his downfall is pre-ordained. For the thief turns out to be a young, attractive woman and the otherwise upright sailor allows her to slip away. Jenny is the star of a local dive bar, with a side-line in smuggling.
