The second book in the dilogy about FSB officers. The story tells about the selfless work of security officers, skillfully solving a complex and complicated case. The reader learns how it is necessary to be vigilant and attentive and how any fact at first glance makes it possible for state security officials to expose important state criminals. The cause they serve requires not only courage, resourcefulness, and unshakable firmness, but also spiritual sensitivity, love for people, and high moral purity. The modern image of the service is determined primarily by people - FSB employees. Both the effectiveness of all activities and the authority of the security agencies depend on their professionalism, attitude to work, and moral qualities. Security agency employees have always had in the past and are still distinguished today by such qualities as patriotism, a sense of civic responsibility for the fate of the Motherland, and loyalty to the military oath. . For them, honor, courage, courage and readiness for self-sacrifice are not simple words, but concepts filled with deep inner content, the moral basis of life.