The book is a crime thriller, and the reader's journey unfolds across two timelines. The older timeline depicts the pre-independence era, where the active struggle for freedom is on display against the crude force of the British Empire. And from the trail of such struggle buds the crime of modern times.
The modern time deals with back-to-back murders with no apparent connection and yet similar modus operandi across areas adjacent to Kolkata. Two young policemen, one IPS and one WB Deputy, try to link the heinous crime through their relentless pursuit. Arryaman Khare, an IPS officer, is the hero of the story; it serves as his introduction to the dark.
Innocent people die in the process, one after another, at the hands of a perpetrator whose sin had been born a long way back.