A stormy conversation with her mother at dinner turned into a surprise for a 50-year-old resident of Podolsk. Mom suddenly said, "You have a brother!". Without a genetic examination, the alleged sister is not ready to accept such a generous gift of fate. But her mother admits that her husband could have had a son on the side. The man's relatives categorically refuse to believe this. So did an unfaithful husband and an exemplary father have an illegitimate child from a mistress?