A powerful explosion shook the hotel building in the Israeli capital, where a meeting of the world's largest diamond magnates was taking place. But this tragedy, which claimed many lives, was the result of a top-secret operation that Beria’s henchmen began to carry out in the early fifties. The action of the new novel takes place in Germany, France, England, Russia, Israel, where the anti-terrorist team “Fifth Level”, created on the initiative of the presidents of Russia and the United States, is actively operating, one of the leaders of which is the “important” of the Prosecutor General’s Office of Russia A.B. Turetsky.