The Unjust is a 2010 South Korean action crime film by Ryoo Seung-wan. It is a dark and bitter denunciation of corruption in the South Korean justice system.

Ryoo Seung-wan is a South Korean film director. He made his debut in 1996 with the short film 'Dangerous Head', then worked as a director under director Park Chan-wook, took film lessons, and made his feature film debut in 2000 with Die Bad. In 2000, he received the Blue Dragon Film Awards for Best New Director, drawing attention from the film industry. Ryoo Seung-wan is called Korea's 'action kid' for his unique action and rough life style, and he directed films such as Crying Fist and The Battleship Island.