My best foe

Businessmen Ignatyev and Bondarev are not only partners but also best friends. Their children both elder and younger ones are on friendly terms too. Once, on a family holiday at Bondarev's house, the host suddenly declares he wants to divide the firm. Ignatyev leaves the holiday in a fit of rage and slams the door. Bondarev's wife enters his study room and sees her husband lying on a floor with his head heavily injured. Miraculously survived Bondarev gets to a hospital, Ignatyev - to investigation cell. Before being arrested, he asks his elder daughter Sonya, who is about to fly to Paris, to take also her brother Petya: Ignatyev persuades he has not beaten Bondarev, so someone is playing dirty pool with them and his family is endangered too. The car of security guards carrying small Petya to the airport is stopped by gangsters; guards are shot dead and the boy is kidnapped. But he manages to escape and meet his sister. Sonya hides Petya in a village and starts own investigation with her boyfriend Roman to rescue her father and protect Petya, though she gets under threat too.