A coup is brewing in Romania. Crowds of people dissatisfied with the policies of President Ceausescu are destroying institutions and seizing police stations. Blood is shed on the streets. By a fateful coincidence, Stanislav Sergeev, a special representative of the Soviet Ministry of Foreign Affairs, finds himself at the epicenter of events. Western intelligence agencies are trying to recruit the diplomat. But wounded, deprived of documents, pursued by revolutionary fanatics, Sergeev organizes a search for secret materials that reveal the true causes of the ongoing tragedy...