Award-winning lawyer Xu Chibai and his wife, Wen Jinning, were once partners who worked side by side at the same law firm. A sudden fire at their marital home conceals a secret unknown to others. Haunted by her past, Wen Jinning steps in to help Lin Si, an inmate serving a prison sentence, unaware that he harbors malicious intentions. Lin Si repeatedly causes trouble, harms Xu Chibai's family, frames Xu Chibai's younger sister, and attacks Xu Chibai, leaving him severely injured. Misled by one-sided information, Wen Jinning repeatedly makes the wrong judgments, inadvertently causing an irreversible tragedy and even misunderstanding Xu Chibai while he is gravely wounded. Heartbroken, Xu Chibai leaves the capital, Jing City, with his mother's keepsake and calmly gathers evidence with the help of his old friend, Jiang Tang.