The suicide of medical student Rojin Lewald poses a number of puzzles for chief inspector Inga Lürsen and her colleague Stedefreund. The young woman, who comes from a Turkish family, wanted to divorce her German husband. She leaves behind a two-year-old daughter. Her wealthy parents are successful and respected citizens of Bremen, open-minded but devout. Curiously, they don't see the death of their eldest daughter as a reason to postpone their younger daughter's wedding, which is due to take place the following weekend. Rojin's siblings aren't too enthusiastic about the detective investigating a suicide either. To the astonishment of the detectives, all family members seem to be giving each other alibis.
But why? The autopsy confirms Inga LürsensDoubt: It's almost impossible that Rojin killed himself. Are Inga Lürsen and Stedefreund involved in an honor killing? Rojin's lawyer, who helped her to go her own way at the time, is firmly convinced of this. The two women were close friends. But there are indications that the lawyer felt more than friendship for Rojin, but did not return her feelings. Stedefreund does not rule out that she could have killed Rojin because of this. Inga, on the other hand, would prefer a classic jealousy drama: the husband kills his wife because she wants to leave him.
The inspectors move insecurely and cautiously in a world that is foreign to them and finally bring to light a truth that exceeds their worst guesse.