Lawyer Zheng Ye (Li Donghui) only wants to be successful, indifferent to the people and things around him, but is tied down by Duobin (Cui Mingbin) and Min Jun (Li Zhouyuan). At the moment of receiving the long-awaited admission notice from a famous law firm, 10-year-old Duobin confessed to Zhengye that he had killed his 7-year-old brother, which in turn had something to do with Duobin's mother Zhi Shu (Liu Shan). Feeling regret and apology, Zhengye decided to uncover the secret hidden by Duobin's mother.