Screen adaptation of Valentin Pikoul's novel "By Pen and Sword". The subject of this film is based on real events that occurred in the 18th century during the Seven Years' War between Russia and Europe. With secret diplomacy, fierce battles, and love stories. On the one hand, it is an ode to Great Russia and the valor of its troops; on the other, it is the true, although improbable, story of the Chevalier d'Éon, diplomat, chronicler, valiant warrior and daring duelist, darling of women and wealthy people. For 48 years, he was a brilliant man and for the next 34 years, he passed himself off as a woman. But, whether in uniform or dressed in a dress, he engaged valiantly, by pen and by sword.