Writing
DEFA crime film about the smuggling of PVC across the (still open) border from East to West Berlin.
The bricklayer Ulli has received a letter from his girlfriend Sabine asking him to come to her from Berlin as soon as possible. Sabine works as a sales clerk in a small village in the Zittau Mountains near the border with Czechoslovakia. However, when Ulli arrives at the station, Sabine is not waiting for him. He goes alone to the Fuchsbau inn. Sabine's friend Traudel only knows that Sabine has made her way to the station. When she notices that Sabine's room has been cleared out, she calls the police. All the police find in Sabine's room is a map showing a trip to Hamburg. They now consider Sabine to be a fugitive from the republic.
Research results of enormous value are stolen from the experimental laboratory of a chemical company in the fictitious town of Bärenfurt in the GDR and seized at the Berlin sector border. The trail leads to the agent "Haas" at the Bärenfurt municipal theater. Captain Jentsch is at the theater to uncover his identity and arrest him. A murder takes place during the "Fiesco" premiere. Many people are suspects, including the head of the theater, Born, who is engaged to the actress Vera and has a conspicuously apolitical attitude. It is no easy task for the security officers to distinguish between reality and appearance in this milieu. Through precise work, they succeed in unmasking the perpetrator and arresting him after a chase through the theater.
A wrestler finds his political interest and activism through sport. However, this is extremely dangerous during the Nazi era and the workers' sports movement starts a resistance against the Nazi regime...
