When tycoon Chen Guangyao is poisoned in a sealed room, with the only key in his own pocket, it is merely the tip of a vast conspiracy. Detective Gao Yuan is dragged into the vortex, facing a killer who smiles as he confesses and taunts, “Who can prove it?” He must also confront a priceless blue diamond that vanishes into thin air in full view of everyone at an auction, and uncover a bloody case involving two generations of the family, its bones buried beneath an old, long-sealed mansion. Psychological manipulation in an art gallery, another poisoning during the reading of a will... Every “impossible” mystery he solves draws him deeper into the web of greed and lies spun by the Chen family. Gao Yuan must press on through layers of fog, skirting the abyss of human nature and desire as he seeks the deadly truth concealed by a perfect crime.
