Der Tote vom Maschsee

A corpse floats in the greenish water of the Maschsee. The tongue of the dead man lies severed off at Stöckener Friedhof in Hannover, on the grave of the victims of the mass murderer Fritz Haarmann. The Hanover Criminal Investigation Department quickly finds out that the murdered man is a well-known psychiatrist, an expert on sex offenders, whose cool, rational theories have even caused a stir on television. But who wanted to silence the man in such a symbolic way?