Du Zixuan, the ace agent code-named "Night Owl", was judged to have sacrificed by the organization due to the failure of a top-secret mission. He became the most inconspicuous newspaper clerk in Shanghai in anonymity. Three years later, Zheng Xinqing, his former partner and fiancée, parachuted in as the new inspector of the enemy's special agency, and a purge storm suddenly descended on the internal "mole". When everyone thought he was a lamb waiting to be slaughtered, Du Zixuan silently pushed up his glasses and smiled: It's time to settle the score, starting with you.
