During the shooting of a jealousy scene on a soundstage, one actress is murdered. Due to the fact that the male star of the movie had a relation with the victim and the female star is now his fiance, he is suspected by the police.
During the production of an early movie using not only pictures but also sound an actress is murdered. The arriving inspectors do not only have to get to know the circumstances of the crime but also the new conditions: how "sound-movies" are made, to solve the crime.—<Katharina_Strehl@public.uni-hamburg.de>