Nazri, a police officer from the Narcotics Department, starts to realize that the drug syndicate led by Tony Ifrit, involved in the distribution of methamphetamine, is becoming more and more rampant, often evading the clutches of the law during the judicial process. Nazri decides to resolve the issue himself. Meantime, Sheriff, an officer from the Integrity Department, is a dedicated and insightful policeman, shaped by his own past experiences. When the "Meth Killer" case gains public attention, the Inspector-General of Police assigns Sheriff to solve it, suspecting that the Meth Killer might be hiding among the ranks of the Narcotics Department itself.