A massive cement factory, the town's main source of livelihood, is destroyed in a suspected arson attack. This happens amidst a heated dispute between the factory owner and the labor union leader, Shanmugam .
The series is structured so that each episode corresponds to a day of the festival, with the investigation peeling back layers of the town's social fabric. Every character is revealed to have "dual shades," and the town's tight-knit community—where "everyone knows everyone"—becomes a claustrophobic trap of secrets. The "Vortex" of Twists
The narrative begins with two seemingly separate incidents occurring on the same night: