ДНК S09E47 - Выпуск 1238. Две дочери утонувшего отца?

Vera, Nadezhda and Lyubov have been searching for their niece Katya, the daughter of their drowned brother, for many years. But an unknown girl found them, assuring them that she was their niece, only not Katya, but Olya. Did the deceased man really have a second daughter, whom he did not tell anyone in the family about? Or is Olya the Katya that the aunts have been looking for for several decades?