During the shooting of a jealousy scene on a soundstage, one actress is murdered. Due to the fact that the male star of the movie had a relation with the victim and the female star is now his fiance, he is suspected by the police.
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.
