Aiman (Firdaus Rahman) is a 28-year-old correctional officer who is recently transferred to the territory's top prison. At his new workplace, Aiman begins to take an unusual interest in 65-year-old Rahim (Wan Hanafi Su), the long-serving chief executioner of the prison. Rahim also takes notice of the principled and diligent Aiman. When Rahim's assistant suddenly quits, he asks Aiman to become his apprentice. Can Aiman ultimately overcome the dark secret that draws him ever-closer to Rahim and become the next chief executioner?