Sophiiiie!

Young Piano teacher Lukas accidentally meets DJ Nathalie, the love of his life. After losing her telephone number, he starts looking for her. Finally, he finds her place and stays with friends of hers while she is abroad. Now Lukas falls in love with Alice, but does not want to admit it. And while his relationship with Alice is in doubt, Nathalie comes back home. Trouble had been breeding all along.

For a job, Alina has to accept longer working hours and long business trips. The single mother has to reorganize her everyday life with her daughter Lilia and asks her ex-boyfriend Jarek to teach her the violin lessons. While Lilia finds it difficult to come to terms with the new situation, Jarek soon finds pleasure in contacting violin teacher Clara and her sons - much to the dismay of Clara's husband. When Lilia gets the chance to change to another teacher as a master student, the contact with Clara breaks off. Until Jarek and Clara meet again by chance a few months later.

Siblings Mareike, Dietrich and Felicitas Reber can hardly believe their eyes when, after an absence of 50 years, their father Xaver, who was thought to have disappeared in Argentina, suddenly turns up on their doorstep - penniless, without a pension or health insurance and with nothing but his toothbrush in his luggage. Attempts to drop him off at the social welfare office, in a retirement home or at a highway service station fail - and so, one by one, the hard-hitting Xaver wanders through all the apartments, causing quite a stir in the families, partnerships and work of his children. It turns out that the three siblings are also in a bit of a mess, and it doesn't take long for them to realize that their freewheeling father isn't their biggest problem...

Schoolboy Jerôme Höffner, a brilliant nerd, is despised and pestered by his 'cool' classmates, except assertive immigrant Said, who protects him. Foppish mother Debbie Höffner's cool latest lover Marco Schmitz teaches his 'stepson' to fight back against bullies, but breaking Jan's nose in self-defense, Jerôme is forced in therapy with a child psychologist, who finds him a genius and recommends a mensa boarding school, but he willfully scores average on tests, fearing Debbie can't cope alone, until her clumsy attempts to offer enrichment privately frustrate him enough to visit, with Said, Dr. Kleybold's IQ school, which proves most tempting.

Fat German star restaurant chef Gregor shows romantic interest in waitress Eden Drebb. She's happily married to hunky Xaver Drebb, but feels romantically neglected. Gregor's deserts seduce her, first trough her brat daughter Leonie, to spend time with him and his fabulous dishes. That soon becomes a rather platonic affair, and domestic troubles. Xaver decides to exact revenge on Gregor, with tragic results.