There is not much that can be used to lure Husum ex-Commissioner Piet Becker out from behind the dike. But when his music combo beckons a few appearances, the northern lights even embark on a journey into the deepest Harz: His half-brother and band bassist Hannes has the lead singer Piet, the guitarist Paula and the drummer Rüdiger a three-day engagement in a small, fine one Spa mediated. However, shortly after the arrival it turns out that the music is actually playing somewhere else: a "professional colleague" of the notorious marriage swindler Hannes was found dead. The circumstances are still unclear, but since the deceased - just like Hannes - had chosen the fun-loving millionaire Anette Bistrop as a generous victim, this could come under suspicion of murder as the cause of death. Apart from that, Anette has been threatened by a stranger for some time