ДНК S05E119 - Выпуск 678. Кондуктор родила от водителя?

At the funeral of the sister's brother, they were surprised to see a wreath from his wife and son, because the man had no wife. Then a resident of Ivanovo explained to them that a year and a half ago she gave birth to a legitimate heir. Women do not believe their brother's mistress, because he could not have children. Do the sisters really have to give up the real estate of a deceased man in favor of a one-and-a-half-year-old baby?