Why would a promising psychology expert give up his identity and become a fortune-teller? What really happened in that old case from years ago? What does the unusual tattoo on the victim mean? To solve a murder and uncover the truth, Qing Xian is temporarily assigned to join a special investigations team. Yet it seems as though an invisible hand has been guiding the course of the case all along. Will he fight a dragon and become one himself, or stay true to himself and carve a way out through bloodshed? The case is full of twists and turns, but who is the real killer?