After eight years of marriage, Xia Xingyue and her husband, Xu Hengyuan, live apart in different cities. She stays alone in Jiangcheng to care for her sick mother-in-law and daughter, allowing her husband to pursue a promotion to vice president in Nancheng. She takes their daughter to Nancheng to surprise him, but the perfume, unfamiliar strands of hair, and details in his lies make her suspect that he is cheating. What breaks her heart even more is discovering that her best friend, his junior schoolmate, and the entire Xu family all knew and conspired to hide the truth. With her heart shattered, Xia Xingyue suppresses her emotions and secretly gathers complete evidence before striking back decisively, making every betrayer pay the price. She ends her broken marriage, takes her daughter away from the Xu family, returns to her own family group, and embraces a new life of her own.