<p>The world-famous double bass player Dimitri Sachow escapes from prison one morning. His career path is unusual: from child prodigy to serial murderer. <br>A melody is Inspector Schrenk's first point of reference. In order to prevent further murders by the psychopathic virtuoso, Schrenk enters into a strange musical world. <br>A bizarre composer, a fictitious concerto, and a father obsessed with perfection, lead him to the scene of the last gru...