Winter 1953. Beneath a pitch-black Leningrad sky, two bodies lie near the towering statue of Lenin outside the Finland Station. 'Nothing sinister, here, just a simple hit and run,' an officer in the MGB secret police assures militia detective Revol Rossel. Now he knows it's murder.

Only recently released from a brutal Siberian labour camp and determined to find his missing sister at last, Rossel wants nothing to do with this new case. But his alcoholic, broken superior officer, Captain Liphukin, seizes upon it as his salvation – a last chance to be a true Soviet hero.

Along with sharp-witted Sergeant Lidia Gerashvili, and Major Nikitin, the interrogator who once cut off Rossel's fingers, Rossel sets off on the trail of a murderer whose crimes surpass those of even the deranged tsar Ivan the Terrible. A trail leading to a dark, hidden episode in Bolshevik history filled with unspeakable horrors.

There is only one eyewitness – Vladimir Ilyich Ulyanov, better known as Lenin, whose giant right hand stretches out towards the frozen River Neva. Lenin, Rossel thinks, seems to be pointing at someone. But who?