Ji Seok and Ryung catch the remaining Grasshopper who everyone believes is the Subway Ghost. However, while being interrogated, the Captain of the Grasshoppers makes a shocking statement. The truth about the Subway Serial Murder Case finally begins to reveal itself and Ryung is hopeful that she may find out what happened to her sister.
지하철 유령이 검거됐다!
하지만 기쁨도 잠시, 놈은 누구도 예상치 못한 충격적인 이야기를 꺼내놓는데..!
지하철 연쇄 살인의 얽히고설킨 전말이 서서히 드러난다..!
