Mari is nine, bright, curious and the daughter of a contented, happy family. Mrs. Panacek is seventy, a little confused, but still alert and sometimes even cheeky. She lives in a home to which her son-in-law has sent her in order to have a free hand in running the family fish business. Mari notices Mrs. Panacek because she is wearing two different stockings, including a red one. "Red keeps you warm," says Mrs. Panacek. When Mrs. Panacek runs away from the home, Mari takes her open-minded parents at their word and simply brings the old woman home with her. Didn't her parents always say that you have to be there for others too? Well, they didn't quite mean it that way, but after initial fears and insecurities, Mari's parents realize that they have to show commitment. The film tells the story of an unusual friendship without slipping into social utopia.