A chief commissioner investigates the murder of a young woman and a fatal car accident. Apparently there is a connection between the two cases.
Chief Inspector Johannes Fischer has retired in the meantime. The last case he investigated together with his former boss Konstanze Satorius has been closed, but Fischer is still convinced that an innocent woman is in custody.
In a hospital in Hamburg, an unidentified woman is disconnected from the life-support system. While the investigators search for the mysterious perpetrator, two more men are murdered.
