In a metropolis with a rule of law society, young lawyer Han Muyang entered the legal profession for the first time and was involved in a complex murder case. He met the old judge Song Shuli, the famous prosecutor Jiang Yao and the sharp media personality Zhang Zhihan. As the case unfolds, affecting power, capital, public opinion and human nature, everyone is faced with choices between justice, interests and ethics. The four volumes revolve around murder cases, financial scandals, family feuds and hot social cases respectively. The characters grow up and are intertwined with each other. Humor and tension are blended. In the ups and downs of the story, unfinished questions about law and justice are drawn. In the end, the main lines converge before the Court of Final Appeal, and everyone realizes self-salvation or collapse. Outside the law, there is still a world that cannot be easily defined.