A Sun is a Taiwanese drama film directed by Chung Mong-hong. The story revolves around a family dealing with the consequences of their son's involvement in a violent crime. As they struggle to come to terms with their son's actions, they are forced to confront their own flaws and failures as parents. A Sun explores themes of guilt, redemption, and the complexities of family relationships. The film received widespread acclaim for its powerful performances, thought-provoking narrative, and stunning cinematography.