At the engagement party, fiancée Lin Wanqing broke off the engagement in public and turned around and fell into the arms of her sweetheart Shen Yan. Celebrities from all over the city watched. Cheng Yan, the former most handsome man in Jiangcheng, became a laughing stock and was scolded as a loser who could not hold up the wall. In the face of humiliation, Cheng Yan not only did not get angry, but instead smiled playfully, resigned himself to degradation, and even moved into a slum to join the gangsters. Everyone thought he was crazy, but they didn't know it was all acting! Cheng Yan is actually the National Security Bureau's ace agent "Night Owl". Three years ago, his parents investigated the mysterious disappearance of the transnational crime group "Qingfuhui", and the clues pointed directly to the Lin family. In order to find out the truth, he lurked for three years, pretending to be a good-for-nothing, only to be "kicked out" today, thus cutting off the contact with the public and infiltrating the enemy's ranks. Breaking off the engagement is the ticket, insulting is the protective color. While everyone was laughing at this poor guy who had lost everything, Cheng Yan had already sharpened his knife in the darkness. Since you like acting, I will accompany you to the end! Let's see how the "trash" works step by step, tearing a gap in the abyss of sin and uprooting the sanctimonious masterminds behind the scenes!