The Russian melodramatic series "The Separatist" tells the story of the happy and long-established married life of Elizaveta and Sergey, which suddenly crumbles. They recently celebrated seventeen years since their wedding celebration. However, their well-being comes to an end with the appearance of a new assistant in Sergey's life. Self-assured Olga shows persistent attention to her boss. And she manages to awaken reciprocal desire in the man towards herself. Sergey suffers from a midlife crisis and is in need of change.