In Stockholm a young female law student investigates a series of jewel thefts that have been baffling the police.

Many, many years ago, there lived a miller with his beautiful daughter. He lied to his king, telling him that she could spin straw into gold. The young woman was immediately taken to the king's castle and told that she must spin the straw into gold by the next day or she would die! After the door closed behind her, a little man entered during the night, who was skilled in the art she had been praised for...

After Willy privately photographs Renee her image headlines an ad campaign making her a star model. Her sister Elli loses her acting job but Willy's friend Max adds her singing to his musical variety act, and they score an instant success.