L'omicidio non è una fiaba

A dead girl at the Elbe beach gives riddle to Chief Commissioner Jan Fabel. However, it does not stop at this one murder. Alluding to the literary models of Sleeping Beauty and Cinderella, a bloody trail soon runs through Hamburg. In his new novel, writer Gerhard Weiss argues that the bloody fairy tales of the Brothers Grimm were based on authentic models. Is the Hamburg fairy tale murderer inspired by Weiss's novel?