Konrad Georg

Police try to track down a hooded serial killer who murders his victims with a combination of acid and poison gas. (imdb)

In a North German Boarding School for Boys, one Pupil, Kurrat, suddenly vanishes one night without informing anybody. Soon, the Police under the aegis of Inspector Klevenow has to learn that Kurrat was a very mysterious, intelligent but also rude person, adored by his roommates, desired by the girls, hated by most of the teachers but obviously passionately loved by one of them. The Investigation reveals dozens of different possible motives for murder. (imdb)

A sea captain who spends eight years in prison for a crime he didn't commit. Now he is forbidden to follow his profession, and his name and honor have been sullied. In order to put his life back in order, he is attempting to find out who actually did the crime he was punished for. Along the way he encounters a girl who is much too young to become his lover, and they become deeply attached to one another. (OVGuide)

The son of an Argentine chemist travels to Vienna, to solve the murder of his father. Step by step, he realizes that his father was internationally entangled in secret service machinations and chemical weapon sales, and ends up in mortal danger himself. Meanwhile, he also realizes that there is no connection between his father's murderess and those dubious activities. Her motive for killing him goes back much further, to a court hearing during the Third Reich.