A Girl Called Rosemarie(1996)

Overview:

Katja Flint, Hannelore Elsner and Heiner Lauterbach star in this German film about a woman who climbs the social ladder by sleeping with those she encounters on her way to the top. When she's discovered dead in her apartment in 1957, the police try to piece together the clues to find out who murdered her … but to no avail.