Kirill never thought that the young woman with glasses—named Nastya—would become so dear to him that, after ditching the trip to Dublin, he would start investigating the death of her grandmother! Nastya refuses to believe that her grandmother died after dropping a hair dryer into the bathtub. Having examined the house, Kirill agrees with her.
Now not only Nastya and her relatives, but also Kirill wants to find out: on what money did the old woman live for half a century in comfort—leaving behind as inheritance a diamond necklace worth one hundred thousand dollars, a little house by the shore of the Gulf of Finland, and an ancient library? And who is rummaging around the house in the dark, trying to starve the heirs of the old woman and find the rest of the treasures?..