Pass to Punish Evil

The Story

Wu Biao, who lives with XYY syndrome, travels by train under the care of Old Liu. The journey turns hostile when Zhu Qiang and his wife harass the pair through seat theft, loud chatter, and aggressive behavior. Wu Biao relies on medication to control his violent impulses, making him highly sensitive to the surrounding noise. The situation escalates when Zhu Qiang knocks his pills away. This act pushes Wu Biao to the breaking point, causing him to brutally defeat thugs sent by Zhu Qiang. Legal protections regarding his mental health diagnosis and self-defense statutes keep him out of prison. Despite avoiding incarceration, his violent urges persist as a constant threat.