In a modern city, the "Shadow Investigation" team accepts various suspense case commissions. Each member has their own unique skills and is involved in the bottom of society, high-level politics and business, the dark web and reality. In the process of constantly cracking cases, they gradually uncover a serial conspiracy that lasts for ten years. Multiple story lines are extended: each team member has a secret mission and trauma, external cases are intertwined with the fate of the members, and the pursuit of justice and truth goes hand in hand with personal redemption. Each volume solves the case independently, and the main case gradually emerges, ultimately pointing to the huge mastermind behind the scenes. All members are trapped in the boundary between life and death. Trust and betrayal continue to reshape the team, and the truth finally leads to a dual ending of glory and desolation.