Eva Sturm is transferred from her former office in Braunschweig as an investigator to the small police station on Langeoog. Only with half heart, she is happy, because sometimes she feels as a late forties just deported. The days rippling, she gets used to and eventually befriends Jürgen, who runs the tourist information. However, there is rarely an occasion for policing. One day before Eva finds a golden ring with an inscription on the beach. With Jürgens help, she tries to identify the owner, who is obviously married to a Maren. But the search goes nowhere. One day, Eve is attacked and the ring is stolen. Maybe there is more behind it? Even murder? Eva Sturm investigates Langeoog in her first case, who leads her to a goldsmith in Cologne. And Jürgen is always at her side.