Tri plyus tri – The Klyachev family lives in the town Zolotogo: writer Anton Pavlovich, his blacksmith son Leonid, grandson Prometey, who works as a lifeguard. The Larin family lives in the same city: taxi driver Valentina Petrovna, her daughter is a tour guide Sveta, and her granddaughter is an artist Yulya. Prometey is convinced that Yulya is a fraud. He uncovers one of her scams and turns her in to the police. The meeting of young people becomes fateful not only for themselves, but also for their relatives, who no longer hoped for personal happiness.
