Ralf, die Alleinerziehende - Ich werde Mutter!

François is a literary scholar and drinker. His relationships with women are limited to one year, his life is sufficiently happy. Until the day when charismatic Muslim politician Mohamed Ben Abbes becomes president in France, introduces patriarchy and polygamy and loses his job. In his growing loneliness, Rector Rediger's offer to resume his teaching at the Sorbonne reaches him on one condition: he must convert to Islam.

In August of 1914, amidst the public ecstasy surrounding the impending war, Hans Gastl, the young son of a Munich bürger, makes a decision: he will not take part in this war. This resolution signifies a turning point in his life; a farewell to his class and his family.

Alex Berger, a respected teacher, is shaken when a student he once slept with is found murdered by a lakeside in his small Brandenburg town, prompting police to order mass DNA testing. As detectives close in, Alex confesses the affair to his wife but insists he’s innocent of the murder, while the strain threatens to tear his family apart.

Victoria Stellmann, head of a traditional cruise shipping company, leads a happy but routine family life. But then she meets the charming Jacques and gets involved in an affair. The angry awakening does not leave long to wait, her lover proves to be an unscrupulous blackmailer. He threatens to publish a video of her night of love. Victoria starts to flee to the front.

A series of episodes around sexual themes are framed by a central sex education plot, showing the viewer the "dangers of love".