After a Chicago profiler training, young commissioner Hinnerk Feldmann accepts the deputy post in Theo Clüver's tiny, singular precinct covering German Frisian North Sea Island Sylt. A tourist lover couple accidentally drugs up in the dunes a 20 years old corpse, soon identified as equally long missing local then-teenager Maria, but her death could have been accidental. Shortly after, a local man is executed in cruel feudal-age fashion, tied onto a steering wheel in the dunes, but first drugged. The syringe is used again during the investigation, which closes in on has-been rock band Coast Pirates. Meanwhile Feldmann has a hard time dealing with the locals.