Lee Hyun, a Criminologist working for the New York Police, returns to Korea to investigate a recent email that he received. He hopes to recover all of the early memories that he lost after the tragic murder of his father. On arrival at the airport, he deciphers some cryptographic symbology that leads him to a recent murder scene. Team 1 Investigative Unit arrives while he is there and mistakes him for the new Team Leader. However, Cha Ji-an, the Lead Investigator, knows who he is because she has stalked him since her youth.
메일로 방배동 살인사건 현장사진을 받은 현! 그 사진에서 자신을 부르는 메시지를 발견한다. 살인사건 현장에 출동한 특수범죄수사팀 지안은 현을 만나는데..