Wang Jiajia, a college roommate, lures friends to her supposed Southeast Asian wedding. Chen Xi senses danger and declines, while the other three go and vanish. Wang Jiajia blocks Chen Xi, and her mother smears her online and vandalizes her home, getting Chen Xi suspended. Chen Xi investigates and finds Wang Jiajia owes gambling debts. She fakes wealth with stolen photos and works for a cross-border trafficking ring, selling her classmates. Chen Xi gathers evidence and cooperates with police to rescue the roommates abroad. Crippled by the gang, Wang Jiajia is caught and sentenced to twenty years. Her parents also face consequences. Chen Xi clears her name and becomes an anti-fraud advocate. The rescued roommates heal and restart their lives.
