Expert analyst Drongo takes on an utterly hopeless case — the search for the missing archive of the Lithuanian KGB. The vanished documents are a time bomb, especially for those who secretly cooperated with the organization. The search has not even begun, and victims have already appeared. There will be many more attempts on lives, shots in the back, ingenious traps, and no less ingenious ways of escaping them. Drongo, too, will have to look into the black pupil of a gun barrel. For him, however, that is not the worst thing in such a treacherous and brutal confrontation. KGB special groups have their own laws, their own special assignments. Sometimes, after carrying out certain delicate operations, the members of these units become unwanted witnesses and are marked for elimination. But professionals of the highest class are not so easy to remove. They are always ready for an unequal fight and do not intend to surrender.