1829: Nikolay Gogol, troubled Third Section clerk, burns his own books. Epileptic seizures plague him. Investigator Yakov Guro discovers Gogol's visions hold crime-solving clues. Together, they tackle a baffling case in Dikanka, where everyone hides a dark secret.

A mysterious Dark Horseman slays young girls near the village of Dikanka, and he has already butchered 11 ladies. Nikolai Gogol, a scribe from Saint Petersburg has to take charge of the investigation, but the closer he gets to solving the case, the more fits he has, causing macabre visions. When he learns the next victim is his beloved, Liza, he doubts that he can protect her and resist the murderer. Fortunately, he meets somebody who can help him: Khoma Brut, the witch hunter, martial artist and philosopher. Together they spend three dreadful nights in an old chapel reading the funeral service for Ulyana, the witch, and calling upon the ghastly evil spirit Viy.

Soon after Gogol's death, Binh names him guilty for the deaths of the Cossacks and the young women at the hands of the Dark Horseman, since he was the one who ordered them to be hidden in the barn. Bomgart is unable to perform a post-mortem analysis on the Gogol's body, while Vakula's daughter Vasilina (who secretly has magic abilities) proclaims denial about Gogol's demise.