The famous forensic phonetician Matthias Hegel is a luminary in his field. Even the slightest deviation in the sound of a voice is enough for him to distinguish truth from lies and thus convict criminals. But now the police consultant confesses to having committed a gruesome murder.
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Director(s): Gregor Schnitzler
Writer(s): Michael Comtesse, Stefanie Veith
Producer(s): Regina Ziegler, Marcus Olpp, Tillman Geithe
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