In a maximum-security prison in Hong Kong, the lives of the inmates are a cruel game of power, betrayal, and survival. The story follows a young and vulnerable prisoner who enters the facility hoping to serve his sentence without any problems. However, he soon realizes that the place is controlled by a violent hierarchy where the strong dominate the weak. Caught in the midst of brutal fights and a corrupt system, he is forced to adapt to survive.
An unexpected mentor appears in his life: an experienced criminal who teaches him the unwritten rules of prison. As the protagonist integrates into the violent world of crime, he must confront difficult decisions that will push him to the edge of his morality. The battles for power between rival gangs intensify, and alliances are broken and forged in the blink of an eye.
With a raw and realistic approach, the film not only portrays the brutality of life behind bars but also the protagonist's internal struggle to maintain his humanity in a heartless environment. With unexpected twists and a gripping climax, a narrative unfolds that explores friendship, betrayal, and the fight for personal freedom, leaving a profound reflection on human nature and redemption.