Amidst the foggy streets of Victorian London, a series of gruesome murders of local women leaves the city gripped by fear. Scotland Yard is at a loss, struggling to identify the killer who swiftly becomes known as Jack the Ripper. Inspector O’Neill, a dedicated and seasoned detective, teams up with an American friend, Sam Lowry, to track down the elusive murderer. Their investigation is fraught with tension as they follow cryptic clues left by the killer, questioning various suspects, and uncovering unsettling secrets. Morale within the force diminishes as each promising lead frustratingly turns into a dead end.

As the body count rises, O'Neill and Lowry face mounting pressure from both the public and their superiors to catch the perpetrator. The duo navigates through a labyrinth of sinister underground meetings, aristocratic decadence, and the sorrowful lives of the victims. Their hunt leads them through dark alleyways and grim scenarios that test their resolve. Before they can corner the killer, a shocking twist upends all their previous assumptions, forcing them to confront an unexpected and harrowing truth that alters the course of their pursuit dramatically.