The film is the solo directorial debut by Kongkiat Khomsiri, who had previously been among seven directors on Art of the Devil 2, and had written the screenplay for The Unseeable.

Piak's skills in Muay Chaiya and hotheadedness make him a fierce fighter, but it is also a liability that costs him a fight and ends his career.

He and Samor also take on other jobs in the criminal underworld, including helping out at the go-go bar where the pretty Warn dances and seduces Piak.

He is eventually put forward as a top boxer in a match against a fierce farang, Diamond Sullivan, who uses performance-enhancing drugs.

Piak rushes to Rajadamnern Stadium, where Pao's fight is being held and kills most of the other gang members.

Initially, Piak surrenders to the police as he is about to murder the crime boss, being compelled by Pao and Sripai.