In a large family, there is a dad, a mom, and five sisters. They have a calm, measured, and busy life: dad and mom run off to work every morning, and the girls rush off to school. They don't notice the small joys around them. 
But one day, an amusement park arrives in town. The girls want to go there, but parents are too busy.
So, they decide to secretly sneak out at night. They climb out of the window, run through the city, through the forest into the park. In the morning, parents find a pile of dirty shoes and sleepy daughters, who are very hard to get up for school.
The girls' uncle comes to visit the family. He helps figure out what is happening.
Then, everyone decides that mom and dad should take a break and spend some time together.