In a dark and rainy city, two detectives, the veteran William Somerset and the impulsive David Mills, embark on a disturbing investigation into a series of murders. What begins as just another case transforms into a chilling pursuit of a killer who uses the seven deadly sins as inspiration for his crimes. Each gruesome scene reveals a new and disturbing perspective on the world, forcing the detectives to delve into the depths of the human mind and question the morality of society.
As the plot unfolds, the tension rises, and the two men clash in their approaches: Somerset, cynical and worn out after years of work in the department, tries to maintain a rational and calm demeanor, while Mills, younger and more energetic, lets himself be carried away by his emotions and the urgency of the case. Together, they must unravel a puzzle that leads them to a dark and unexpected conclusion.
The story complicates when the killer initiates a macabre game, leaving increasingly twisted clues that reveal his intentions. The lines between crime and justice blur, leaving the detectives—and the public—with unsettling questions about the nature of good and evil. With each step, the men are pushed to their own limits, facing not only the monster they have been pursuing but also their own humanity.