Bella is a single mother business and mother trapped in the normal everyday insanity. Nevertheless, she is happy. But from now on, everything gets out of hand. The house, in which the elderly-shared apartment of Bella's father and their own physiotherapy practice are located, is to be sold and renovated. Bella would not be Bella if she was not determined and would fight with all her might against the injustice and sale of the house. But as she juggles with family, her practice, PR campaigns, demos and squatters, Bella needs to realize that even her power is not endless.
Bella enjoys her life in Berlin after separating from her husband Martin. She buys her daughter Lena a dress for their Abifeier and proposes a joint trip around the world. However, Lena has her own plans. Why else would she drop a meeting at the mall with the handsome cop Sebastian Berg, who still raves about bubbly Bella? But Bella's mind is not on men - she has Lena, that's enough for her.
In the fourth film with Andrea Sawatzki as a newly invented housewife and mother Bella Jung, Bella faces a new, completely unexpected challenge: her father Friedrich. After 14 years without contact, he is suddenly drunk and destitute in front of Bella's door.
Bella is in a dilemma: She lives with her ex Martin and her new boyfriend Sebastian in a shared flat. Neither does she dare to pour Martin pure wine, nor to quit. Just when Bella has come to an end to the secrecy, a bad news arrives by phone: Two very good, mutual friends of Bella and Martin have been fatally injured. They leave Tom, a two-year-old boy. Bella does not hesitate: Martin and her will take care of the boy. But how should that work in the WG? And what about Bella's relationship with Sebastian?