A soldier runs amok in a school. Military police and SEK take aim at the heavily armed man. Suddenly he is shot dead, but none of the snipers fired the final shot. Inspector Bischof is tasked with finding out who killed the soldier. The soldier was stationed in the very barracks that is under the command of Lieutenant Colonel Ralf Bischof, Kathrin's husband. An officer from the Military Counter-Intelligence Service is assigned to assist her in the investigation. Kathrin bites into the case. She finds out that the dead soldier was taking part in a series of scientific experiments testing methods to prevent anxiety. This research project is being led by her sister Ariane, a renowned psychiatrist. Kathrin's investigation puts her in extreme danger.

A husband is humiliated at home and at work. He decides he has had enough of it and hires a prostitute to help him get back at his boss, wife and friends and get a lot richer in the process.

Inspector Rolf Spiekermann is committed and successful, but has many enemies in Hamburg's underworld and little time for his family. That's why his wife Elke and the children are looking forward to vacationing together in Amrum. Arriving on the idyllic island, Rolf falls victim to a treacherous attack. With the help of the young hitchhiker Olaf, he gets off lightly. Rolf feels at the mercy of an invisible opponent. Because the local police only investigates half-heartedly, he tries to find the perpetrators himself. But inspector Spiekermann has found that all his professional skills cannot help him.

Die Literaturagentin Lara Brunn fährt nach längerer Zeit wieder in ihren Heimatort in den Bayerischen Alpen. Anlass ist der Geburtstag ihrer Mutter. Lara wartet gemeinsam mit ihrer Schwester Sylvia im Elternhaus, doch die Mutter taucht nicht auf. Am nächsten Tag findet ein Suchtrupp in den Bergen eine männliche Leiche, die schon seit mehreren Jahren dort liegt. Kurz darauf wird in der Nähe auch die Mutter tot aufgefunden. Während Sylvia an einen Unfalltod glaubt, vermutet Lara einen Mord. Sie stößt auf einige Ungereimtheiten und muss schnell feststellen, dass sie nur sehr wenig über das Leben ihrer Mutter weiß. Auch die eigene Vergangenheit wird immer ungewisser.

A successful journalist must choose between his wife and a co-worker.