During five weeks every summer, the serenemining village Herräng undergoes a remarkable transformation, becoming a massive lindy hopdance floor that draws crowds from near and far. In the summer of 2016, the village is shaken by a series of crimes committed by Eliot Janssonand his friend Sanny. A young girl goes missingwithout a trace, prompting police inspector HerbertStoltenberg to launch an investigation. And the lindy hop dancer ’Sara’ from Italy gets involvedin a robbery at the dance camp. Meanwhile, ’Larky’, a local ornithologist, is concerned as thelocal municipality makes plans to construct windturbines near the Marina. From behind a brokenblind, an old man observes everything that unfoldsin the small village.