Anna has everything. Beloved daughter Dasha, beloved job, beloved home. And even though she often argues with her daughter, her salary at the library is small, and the apartment hasn't been renovated in a long time, Anna has learned to appreciate what she has and believes that hoping for change at her age is pointless. But on her 40th birthday, Anna is presented with a multitude of surprises... It is from this day that the most terrifying trials and unexpected changes in Anna's life and the lives of all her loved ones begin...