A little boy invents many stories with the help of 10 geometrical patterns. One day, he creates a hat, but the hat flies away and is stolen by a little monkey. He chases the hat around a pop-up city, trying desperately to get it back. During his hunt he goes to many different stores and places (the zoo, the bakery, the hairdresser, the library??_). All images are built with these 10 geometrical patterns.