January 11, 2017: During the opening celebrations, a skydiver falls to his death from the roof of the Elbphilharmonie. The body of a civil engineer recovered from the Elbe, along with the sudden disappearance of four construction workers, prompts private detective Carsten-Oliver Lutteroth to intervene in the hesitant investigations of the murder squad. Together with Commissioner Sandra Holz, Lutteroth uncovers a mysterious secret society in Hamburg and attempts to cover up the construction of the new concert hall by the Hanseatic city. What terrible secret does the Elbphilharmonie hold? In her fifth case, Hamburg Commissioner Sandra Holz investigates while constantly putting her life on the line.