Golden lawyer Gu Yan received news on his wedding anniversary that his twin wife Su Tang had died after falling from a building. The police determined it to be an accident, but found half a bloody jade clenched by his wife at the scene - consistent with the jade patterns left behind when his mother committed suicide three years ago. In order to find out the truth, Gu Yan intervened in the investigation as a lawyer and gradually peeled away the "accidental" disguise: the greedy neighbor secretly filmed Su Tang for blackmail, the selfish cousin misappropriated the Su family's inheritance, the rebellious college roommate forged an alibi, and the hypocritical best friend actually had a half-father relationship with the deceased. As the investigation deepens, he discovers that Su Tang's twin sister Su Zhi has concealed key clues, and all conspiracies point to the mastermind behind an unsolved murder case twenty years ago... When the truth is intertwined with the sacrifice of a loved one and family blood feud, Gu Yan uses the law as a blade to complete the ultimate trial of justice in revenge and redemption.