Major Grom: Plague Doctor (2021) Spoiler-Free Summary – What It's About

In the fog‑laden streets of 18th‑century St. Petersburg, a city caught between grand imperial ambition and simmering corruption, the crack of horse hooves and the distant clang of cannon fire form a restless backdrop for a fragile rule of law. The metropolis pulses with wealth and decay, its glittering facades hiding a growing sense that justice is a privilege bought by the powerful, while ordinary citizens navigate a maze of whispers and unseen threats.

Enter Igor Grom, a police major whose reputation for tenacity is matched only by his uncompromising sense of duty. Trained in the old‑school rigor of the Imperial Guard, he walks a thin line between the stern expectations of his superiors and the gritty realities of street‑level policing. Grom’s world is one of disciplined routine, yet his sharp instincts constantly push him to confront the underbelly that official reports prefer to ignore, setting up a tension between order and the chaotic pulse of the city itself.

The equilibrium shatters when a mysterious figure known only as the Plague Doctor emerges from the shadows. Clad in a stark mask and driven by a radical vision of cleansing the city’s rot, this enigmatic vigilante begins to challenge the very foundations of authority that Grom has sworn to uphold. Their clash is less about personal vendetta and more about competing philosophies: one rooted in institutional control, the other in anarchic retribution. The very air seems to tremble with the promise of a confrontation that could reshape St. Petersburg’s destiny.

Against this backdrop of looming unrest, the film balances a brooding, atmospheric tone with moments of sharp, almost theatrical flair. The streets become a character in their own right, reflecting the inner turmoil of those who walk them. As Grom grapples with the rise of this new, unsettling force, the story teeters between the allure of swift justice and the enduring belief that order, however imperfect, remains essential for a city’s future.