During the Cold War, many of those who tried to flee westward across the dangerous and blurred line separating communist Czechoslovakia from freedom were gunned down: the story of Europe's deadliest border.

Luxurious Danube river cruiser "Kriemhild", on a 2 day tour from Vienna to Belgrade. The ship "Kriemhild" is a floating sin city. Exhausted, unhappy, frustrated people from western Europe come here to "relax" and conduct business with alcohol, entertainment and sex. The crew of the "Kriemhild" are young people from eastern Europe who are trying to earn enough money to escape their small insignificant lives. That one night on this ship will shuffle the hands of fate of both the passengers and the crew of the ship. Prejudices, stereotypes and lack of communication between men and women, people of different religions, nationalities and social statutes will lead to absurd and, at times, dangerous situations, all colored with elements of dark humor. The night will unveil pain and tears, happiness and laughter.

Private detective Ferdinand Zankl is arrested by the Passau police on suspicion of murder. He is suspected of having killed his ex-girlfriend, an animal shelter manager.

Petra Hoffmann is in her early 50s and pregnant. She is not carrying her own child though, but that of her daughter. Midwife Lena Lorenz has been looking after mother and daughter for a while and the pregnancy has been unproblematic thus far, but shortly before the birth the family starts to break apart.

The former professional footballer Alex Brehm has taken care of his daughter Charlie since the accidental death of his wife. The girl suffers greatly from the loss of her beloved mother, but is an avid footballer and finds distraction from her grief, at least for a short while. Also, she is "completely the daddy" - until Alex learns one day after a blood test of his daughter that neither he nor his deceased wife Charlie's biological parents can be.

Chief detective Kluftinger from the Allgäu can't believe his eyes. A dead crow lies carefully draped on the murder victim. In the course of the investigation, Kluftinger comes across a perpetrator who murders according to Allgäu legends.

In a sleepy Bavarian village, a 3-year-old boy vanishes overnight. Detective Nina Kunzendorf investigates parents with prior abuse allegations. With the mother away and the strict, unemployed father at the center, she uncovers the chilling truth behind his disappearance.

A violent crime shakes Inspector Kluftinger's idyllic hometown of Altusried. The murdered man worked as the manager of a nearby dairy and was hated because he cut the price of milk to the bone. This affects the farmers, with whom the detective plays in the brass band, who are worried about their livelihood. Kluftinger has to ask them unpleasant questions, which promptly poisons the atmosphere. His wife Erika is also upset because her husband cancels their vacation in Spain because of the murder case. And to make matters worse, his overzealous father, a retired village policeman, starts his own investigation. While the detective falls into an excavated grave in pursuit of a suspect, Kluftinger Senior's investigations lead to the arrest of the murder victim's illegally employed cleaning lady. She has nothing to do with the bloody deed, but puts the detective on the trail of mysterious truck deliveries from Eastern Europe.