Kauth seems to be a thing of the past. At the moment, Sophie is more concerned with the state of mind of her father Hannes, who is still upset that her Hengasch flat-sharing community has dissolved, but nevertheless continues to seek contact with his daughter in a variety of devious ways. But Sophie doesn't have too much time to deal with her private life, because something unheard-of happens, something not yet seen in the Eifel: In the middle of the huge dish of the radio telescope onion field, a corpse hangs as if on an oversized and high-tech pillory. This time, however, at least it's not an Eifel man who's got it, but the highly decorated Hamburg astrophysicist Baade. Is his cool blonde wife Hilla behind the murder? Or one of Baade's scientific competitors? Sophie and her officers soon realize that someone is deliberately playing cat and mouse with them in this case - and the motives for this murderous game lie far, far in the past, when there was a big bang of an emotional kind.