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The father of ten-year-old Lusha, the unsuccessful writer Boris Kolechkin, works as a sales consultant for Lyosha's mother Alina. She once preferred him to Sergei Mamontov, on whom the fate of her business now depends. Alina, Lusha and Boris, at the invitation of Amiantov, go to his New Year's carnival. There, a duel begins between the men. The soul helps the father as much as it can. The Kolechkins are unaware that the stolen ring of the ancient Egyptian queen Nefertiti was hidden in the half-eaten hot dogs that the homeless dog Caruso treated their dog Christie to. The kidnappers of the priceless ring arrange a hunt for Christie in the absence of the owners of the Kolechkin house. They are confronted by Caruso, who is in love with Christie, who has been sheltered by his family.