Single mother and accountant Tang Lan unexpectedly discovers that her daughter Tang Yue is trapped in a romantic trap, being coaxed and deceived by her boyfriend Shao Kai into taking out online loans to fill financial holes. Instead of crying and making a fuss, she picks up the account book to sort out the evidence, step by step dismantling the fraud chain behind it. Tang Yue transforms from a pleasing prey in romance into a brave witness who stands up. The mother and daughter gather multiple victimized girls to confront the fraud syndicate led by Shao Ming, uncovering old grudges entangled between two generations, and completing self-redemption and a righteous counterattack with every single account entry.