Valentina is in her thirties, she lives in a small village and works as a doctor at a local medical center. She suffered many tragedies: the early death of her parents, a breakup with her fiancé, the loss of a child and, finally, a quarrel with her younger sister Oksana, the only relative she had left.
As soon as she finished school, Oksana told her sister that she was getting married. Valentina took this news hostilely: a quarrel broke out between the girls, after which the offended and angry Oksana went in an unknown direction ...

After many years of searching, Valentina manages to find out in which city her sister settled. But the main character is waiting for another blow of fate: it turns out that Oksana died when she got under the car ... Valya can't recover from this news. She decides to find out all the circumstances of the tragedy.