London, 1888. The fog-shrouded streets echo with whispers of a monster. Jack the Ripper stalks the night, leaving a trail of brutalized victims and a city paralyzed by fear. Scotland Yard is baffled, the public afraid.

Enter Inspector Nathaniel Harper, a haunted man who desperately wants to solve the case and bring the killer to justice. But the body count rises, and pressure builds to find the culprit.

Harper has dealt with many crimes before, but this case threatens his sanity as he delves deeper into the twisted mind of the murderer. In a city where anyone could be the killer and no one is above suspicion, Harper struggles with self-doubt as he relentlessly hunts for "Saucy Jack."