Who lives in the little cottage?… Yevlampiya Romanova with her daughter Kisa came on vacation to the sanatorium “Teremok” and immediately found themselves at the center of events. The adventures started with a trip to a mini-zoo and a visit to the Russian hut, where the hospitable Veronika treated them with tea with pies. There, Lampa also meets Tanya, and Kisa meets her daughter Sveta. Tanya lost an earring, Nika found it and returned it to the owner. The mother and daughter left—and that’s when a grand scandal began. The rich guest of the sanatorium accused Nika of kidnapping an antique earring with diamonds and sapphires. At the request of the “Teremok” hostesses, Lampa goes to Tanya to get the jewelry and learns that Tanya’s sister has been kidnapped—and all roads lead… Where? That’s right! So who lives in the little cottage?