Police officer Maria Vetrova is transferred to a quiet provincial town, hoping for a peaceful posting. However, she has to reopen a case from 18 years ago when a man considered the prime suspect returns to town. In her search for the truth, Maria encounters the distrust of local residents, long-standing grudges, and intrigues involving the city authorities. Gradually, the detective realizes that the secrets of this town could destroy not only the lives of those connected to the case, but her own life as well.