The Amigo plot.

At the luxurious boys only boarding school Schloss Lohenstein the 17-year old Anna, daughter of the caretaker, is found dead. Her death is surrounded by mysterious circumstances and Benno Berghammer (Ottfried Fischer) soon has the entire village against him. The Headmistress Victoria von Lohenstein (Gila von Weitershausen) as well as the local police officer Pfeiffer (Udo Thomer) obstruct his investigation anyway possible. Pfeiffer intends to close the case as soon as possible, insisting that it was nothing but a tragic accident. Headmisstress von Lohenstein is convinced it was suicide. Only Benno knows: It was murder! Investigation uncovers that Anna was pregnant at the time of her death and just before she died, she was offered 100.000 Mark to get an abortion...

Gisele Rose, a finance official from Tölz is killed after she gets in her explosive-wired car and gets blown up. Benno Berghammers (Ottfried Fischer) first instinct is to look at any connection between the tax affair "Steueraffäre Ramboldt" which is supposed to be presented at the Bavarian Federal State Parliament. But when Berghammer investigates further Ms. Roses former colleague Mr. Hecht is abducted. Berghammer realizes that the first attack might not have been intended for Ms. Rose but instead for her colleague who not only worked on the tax affair but is supposed to present it. Then Benno Berghammer meets the beautiful Elfriede Seidl (Veronica Ferres), who was Hechts vacation replacement and together they come up with a new theory...

Kaspar Schoder is found dead and perforated by a ski stick inside a ski-lift and his soon-to-be daughter in law Vroni Röckl has enough financial and personal reasons to wish him dead.