A little girl from the Moon travels to the Earth, where she meets a naughty boy named Myshko, they become friends and engage themselves in a exciting game that teaches them to tell good from evil.
Dzvinka and Myshko learn neatness. While playing detective, Dzvinka guesses everything that Myshko did during the day, looking at the spots on his clothes. Myshko connects to the game and tells everything that Dzvinka and Snail did. Then kids in kindergarten learn how to do laundry during a fun dance performance.