Sekt (bubbles) winery owner, Johannes Nienberg died from a fatal head wound at home, where only one thing is missing: the horns from a rhinoceros hunting trophy, the third generation family company's label emblem, worth up to 200 000 Euros, yet there are no breaking traces. Son, heir and manager Frank Nienberg sees no other motive, his mother was to Berlin with a friend using concert tickets Frank gave them. Long-estranged second son Holger Nienberg, who left the family to become a fisher, hides having had contact, both have alibis. Johannes Nienberg recently contacted his first love again, Dr. Elisabeth Schwarz. Frank covered up the wine estate he bought from his wife's family was a major mistake.