The story revolves around a young and happy woman named Maria. Her life can be described as fulfilled. Masha is happily married to a loving and beloved man, and together they raise their son. Everything changes when the main character suddenly receives a letter that shocks her. Her grandmother, whom Masha hasn't seen since childhood, asks for a meeting. Masha travels to the countryside, but arrives too late - her grandmother has already passed away. The tragic news is delivered to her by a girl who turns out to be Masha's sister.