Olga Lomonosova

Ksyusha barely remembers her father: he went missing when she was a child. Years later, with her mother remarried, Ksyusha experiences a sudden but bittersweet reunion — her father has returned home, but in a coma. The family is thrown into disarray by the return of the former master of the house, but his strange reappearance is only the beginning. Soon, terrifying things are happening in the house, and Ksyusha's mother exhibits bizarre new behaviors. (Shout!Factory)

Katya works as a secretary at the company Zimaletto. She has a sharp brain, a wonderful character and a pure soul, but so far no man has paid attention to her. However, her plain looks don't keep her from dreaming about love and happiness. (imdb)