Murderers don't take vacations. Finally, it's vacation time! For village policeman Thies Detlefsen from the North Frisian town of Fredenbüll, it's off to Amrum with the whole family. But there, they immediately discover a dead golfer in the blue-and-white Friesen bed of their guest room. Before Thies can even put on his police cap, the body has vanished again. And two more dead bodies turn up. Is there a serial killer on the North Sea island?.