A gang of unemployed itinerant musicians play in the south of Stockholm. Then they get the chance to be an orchestra in a dance restaurant. It goes well until the female owner falls in love with one of them.
John is the skipper of the Albertina which is moored in Mariehamn. Nearby is luxury yacht Sea Star, where Ann-Mari boards. She begins to take an interest in John and makes sure to come aboard the Albertina to meet him.
Brothers Fredrik and Pontus own a family company. Fredrik is the manager of the old school and Pontus is a professor of psychology, which theorizes that men is more intelligent than women. Astrid, a young woman, opposes these theories and Pontus decides to hires her, which Fredrik doesn't like....