Lieutenant Valery Samsonov is on the trail of an ingenious, bloodthirsty murderer whose victims already include two employees of a pharmaceutical company. Someone is systematically and brutally killing those connected to Operation “Ultraviolet”—the development of a unique medicine. But something went wrong with the scientists: instead of the required drug, they created a lethal weapon—information about it must under no circumstances fall into чужі руки.
Samsonov must, at any cost, prevent new victims. But the case is complicated by the fact that the investigation is overseen by inconspicuous people from the special services—on the line is the country’s security…