Qin Yu, an ordinary office worker, and his wife Joanna are a perfect couple who went from campus sweethearts to husband and wife. Their years of loving devotion have earned everyone's envy, and Joanna has always been certain that her husband loves only her. But a devastating career setback completely twists Qin Yu's true nature. Determined to climb the corporate ladder, he becomes willing to do whatever it takes, even contemplating using his wife to secure a promotion. As Joanna gradually notices her husband's strange behavior, she secretly follows him to uncover the truth. What she discovers cuts to the bone. The young man who once loved her so deeply is gone, and their long-lasting relationship has finally reached the point of no return.