After Willy Unterkofer, an old acquaintance of the Germingers, is murdered, Franz Junior takes over the investigation together with Karl and Anna and a family quarrel soon arises. Franz Senior and Erika seem to want to steer the youngsters in a certain direction. Their credo is that the past should be put to rest, but this makes Franz Junior and Anna even more curious about what the seniors are hiding. The fronts soon harden and everything is at stake: not only Schwarzach 23, but also the whole family...