The film tells the love story of two young couples. According to their social ranks, construction worker Edy is dating employee Siegi, while medical student Dieter is dating art school student Sonja. Rather unintentionally, they exchange partners. During a carnival ball, Dieter makes out with Siegi because he falls for her her fresh and happy girlish manner. Sonja coolly observes this game and sees this intermezzo as a test for their relationship. While Siegi and Dieter vacation at the sea, Sonja falls in love with Edy. Now the die seems to be cast for new constellations. But when both couples stand in front of the registrar’s office, they finally come to their senses.

GDR border guard Gunter Rist is a young man from humble homes. During a swimming competition he meets Penny, a professor’s daughter from a good family, and they fall in love. However, their different social backgrounds get in the way of their happiness: Penny’s friends make it obvious that they are not willing to accept Gunter in their group. Although Penny takes Gunter’s side, she doubts if love can overcome all obstacles. In this state, she falls for the advances of her ex-boyfriend Bob and joins him on vacation. In the meantime, Gunter has an accident and is hospitalized. In the hospital, he meets the nurse Li who seems to be perfect for him.

Two 17-year-olds, Werner Holt and Gilbert Wolzow, are pulled out of school and into Hitler's army. Gilbert becomes a fanatical soldier; but at the front, Werner begins to understand the senselessness of war.

In the mid-1950s, mayor Zwischenzahl is killed on the day of his inauguration in a West German town. The killer is Ruth Bodenheim, a Jewish woman, who wanted to avenge the death of her parents. Zwischenzahl, a former SA member, was apparently involved in the deportation of her parents to a concentration camp during the war. Ruth cannot bear the horrible events and the death of her parents and wants to open the eyes of the town′s residents.

A fairy-tale about a beautiful but very haughty princess Anna who cruelly mocks each of her suitors. Finally she is forced by the king to marry a beggar. The poor life, hard work and love teach the princess a lesson and turn her into a loving and kind person.

The film describes the activity of an ABV of the People's Police in its section in East Berlin. A mixture of “positive” characters from the beginning, the extensively staged “owl”, who is introduced as a criminal and over the course of time, especially due to the influence of the ABV, develops into a good citizen, and incorrigible characters, with whom the ABV fails with its extensive attempts at rehabilitation and who are arrested after having committed again offenses.

The "Concordia" trading company in Würzburg is a secret headquarters of the MID, a secret service agency of the US Army. For years, espionage, sabotage, and diversion operations originated from here in order to undermine the Socialist Republic of Germany. A favorable moment for a military attack approaches and plans are developed. These plans are placed in the hands of Major Collins, who keeps them in a safe. Hansen has worked for him for many years, but also for the Stasi as a double agent. Security Chief Colonel Rock knows there is a leak, but Hansen has passed every test thrown at him. He is trying to deal with his current assignment: acquiring the plans so they can be made public. His mission is to get them out of the safe and into the GDR without getting caught.

The young lady Lisa Gau probably took her own life at Seilergasse 8 in Rostock, at least that's what it looks like. Captain Schirding, who has been assigned to the case, sees things differently. Together with forensic scientist Kurt Lisowski, he investigates the case and soon discovers that Lisa was poisoned and is shocked when all the evidence points to his...

Young lovers Hero and Claudio, soon to wed, conspire to get verbal sparring partners and confirmed singles Benedick and Beatrice to wed as well.

This film is the first of a two-part historical and biographical portrait of the communist politician and anti-fascist Ernst Thälmann. In early November 1918, Ernst Thälmann is an unwilling soldier serving on the western front. As the revolutionary movement at home is threatened by the betrayal of the Social Democrats and fissures in the working class, Thälmann calls on his fellow soldiers to put down their weapons and unite with the workers in the communist struggle at home. Thälmann’s qualms about which side he is fighting on continue, but when the local police attempt to prevent a shipment of provisions and supplies from reaching the people in Petrograd, he intervenes and the ship is unloaded. With this moment of clarity, Thälmann continues to follow his political convictions and joins the workers at the Hamburg uprising in October 1923.