Based on the best-selling novel by Eduard Topol, this miniseries traces the real-life story of the death of KGB Deputy Chairman Semen Tsvigun in 1982. The true reasons behind the sudden demise of this man -- who was No. 2 in the Soviet State security system -- remain a mystery to this day, although official sources cited "grave illness" as the cause of his death. Vyacheslav Shalevich, Vassily Mischenko and Lyudmila Zajtseva star. Rauf Kubayev directs.