During a fashion show in Leer, 17-year-old Stephanie is shot on the runway. The perpetrator escapes unnoticed. Will he try again? To get Stephanie out of harm's way, her wealthy father, shipowner Venema, sends her to a clinic on Langeoog, where her concerning underweight will also be treated. However, upon her arrival on the island, unexpected events unfold. Stephanie mistakenly picks up the wrong suitcase at the ferry terminal. And it contains something that its owner desperately wants back. In the evening, shots are fired at a wild student party on the beach; it turns out to be the same weapon that was used to shoot at Stephanie. Island police officer Lüppo Buss is alerted. And the heavyset Stahnke is conducting an undercover investigation in a clinic for eating disorders.