In the fog-shrouded Shanghai of Republican-era China, spoiled young heir Shen Yanzhi is struck by a family upheaval and the brutal murder of his sister.
Leaving his former life of indulgence behind, he enters the game alone, solving a string of bizarre cases and locked-room murders amid the shadowy intrigues of the international settlement.
As he maneuvers among rival forces, clears away the fog, and pursues the truth behind a blood-soaked tragedy, he gradually transforms into a legendary detective whose name inspires awe across Shanghai.
