The heroes of the best-selling books in the Acoustic series must fight for their lives together.
A thrilling abduction, top in its genre!
Successful journalist Youla Anzorgue has been trying for years to uncover the truth about the fate of her brother Moritz, who disappeared under mysterious circumstances. Moritz was initially accused of a heinous crime by the police and later presumed dead by the authorities.
Matthias Hegel, the famous expert in vocal criminology, claims to have evidence that Moritz is still alive. Although the capable expert, who only needs a voice sample to analyze the soul of a perpetrator, has lied and manipulated Youla many times, she decides to meet him one last time, which proves to be disastrous: Youla and Hegel are violently abducted. Obviously, there is someone else who wants to locate Moritz - and to find him, they resort to the most brutal tortures. Now the two of them must answer a terrifying dilemma: If they solve Moritz's puzzle together, Youla's brother will be killed. If they don't solve it, they will die agonizingly in captivity...