Ninth circle. Sharapov V.G.

The beginning of the eighties. At the summer cottage near Moscow, the operatives detain the leading designer of the secret Research Institute. For a long time, he secretly transmitted data on our strategic developments to Western special services. During the interrogation, it turned out that the detainee is only one of the links of a complex spy chain. The main person involved under the pseudonym Zvonar works at the head enterprise in Siberia... The KGB operape, led by Major Mikhail Koltsov, urgently leaves for the place. And immediately faces the murder. Under unknown circumstances, the deputy director of the same Siberian enterprise dies. Koltsov is sure: the bell ringer felt danger, and this death is the beginning of his agony...