During their investigation into a toxic waste scandal, Yousseff and Anne Marie Fuchs' client are found dead, and the two detectives find themselves in a life-threatening situation.

Mid-fifties Anne Marie Fuchs lives modestly and withdrawn in Düsseldorf. When a murder happens, it becomes clear that the inconspicuous lady, who is always in short supply, seems to be an absolute investigator with a razor-sharp mind. No wonder, because Anne Marie Fuchs is a former East German spy, especially one who still has a bill from her active time open.

Armenian Belinda feels at home in Germany, where she was born, lives and studies just like any other German girl her age. But when she loses her father, she is suddenly drawn into the traditional Armenian lifestyle of her migrant relatives. Her aunts require her to work in their seamstress shop and secretly plot to marry her off to one of her kind. While Belinda is becoming increasingly curious about her roots, their traditional ways also threaten her relationship with Manuel, a German. She embarks on a journey into the past and the present to find out who she really is. ANDUNI shows a culture that is exciting and complex, and a love story that reaches beyond family traditions.