Bobby Kustermann is a young man with Down syndrome who lives in a loving family until his mother dies unexpectedly, leaving a hefty heritage. There is a dispute between Bobby's two siblings, Nanni and Johannes, as to whom could give Bobby a better home. Nanni and her husband Klaus would offer a “normal” family environment, but Klaus is only after the money. Johannes really wants to take care of Bobby and give him a home for the future. The problem is he is gay and lives with his partner Marc. The responsible offices don't like that at all. Only when the matter goes to court, do the parties to the dispute realize that this is mainly about Bobby's will and that he can actually best decide who he would like to live with in the future.

The Mahlström family has been traveling to Södenhagen on the Baltic Sea for 15 years. But this year everything is getting out of hand: Kurt is about to become unemployed and can no longer afford to go on vacation. His marriage to Marga is in crisis and Kurt doesn't dare tell his wife about his difficulties. Pubescent Kati is also in a bad mood because she would rather have gone to France with her friends, and she falls in love with the chaperone Dominik.

Since the death of her husband, ex-teacher Franziska has had to look after her son David and his disabled brother Bobby on her own. Their new neighbors, Professor Maximilian and his wife Mechthild, bring a breath of fresh air into their lives.