Kluz gets caught in a summer storm outside the house. He finds shelter at Olga's kiosk. And while he waits for the rain to stop, he sees three children moving suspiciously amidst the general commotion. What are they doing? Why are they going in and out of other people's houses? Are they trying to steal? He watches them, but he can't figure it out. However, the astute detective knows that with his patience, intelligence, and unbeatable chewing gum, he will eventually manage to solve this case as well...