Olga Sokolova's life has entered a dark period. She used to be a surgeon at a hospital in Moscow, but after being laid off, she lost her job. Soon, she discovers that her husband has taken a mistress. Devastated and having lost everything in her life, the protagonist decides to return to her hometown. On the way there, she is involved in an accident - a truck crashes into the bus she was traveling on. Olga soon learns that she survived only because she mistakenly took another passenger's seat. Trying to forget it all, she starts her life anew.