On the subway, Liu Ruyan framed the blind lawyer Chen Zhe for filming and broke his mobile phone. Chen Zhe was then taken to the police station. He remained calm in the face of everyone's doubts. The navigation glasses were tested and confirmed to have no secret camera function, and surveillance also revealed the truth. Chen Zhe took out the full recorder and confirmed Liu Ruyan's slander. The doctor confirmed that she was congenitally blind, and Liu Ruyan was punished according to law. Chen Zhe used the law as his blade to seek justice and defend his dignity and justice.