In the modern city, a well-known law firm is at the juncture of change. Lawyers such as Lin Siyuan and Zhou Yiran not only have to fight in various complex cases, but also face the undercurrent of power, interests and industry ethical dilemmas. When new assistant Xu Jiaming first entered the workplace, his ideals were tested by reality. Qin Zewen fell into a moral struggle due to a suffocating criminal case, Zhao Miao secretly planned the power game, and Su Jiyang revealed the truth of the industry with his pen. Everyone's story lines are intertwined with each other. In friendship, love, struggle and growth, they understand the boundaries of conscience, interests and redemption. In the end, in a major case that affects the fate of the industry, they must all take full responsibility for their choices and face the dual trials of their hearts and the law.