Detective Shen Yi, who has "hyperamnesia", is forced to go undercover and become the "criminal consultant" for Gu Ye, a rich man with antisocial personality. He must collect irrefutable evidence while guiding the other party to complete a more perfect crime. This dangerous game that began with mutual calculations has gradually evolved into a dance on the cliff of intelligence and emotion. When Shen Yi discovered that Gu Ye's old case was actually connected to his own dark past, he was shocked to realize that he might be the only "perfect suspect" in the chess game. He must choose between uncovering the truth and destroying himself.
