: A pawnbroker is murdered shortly after his release from prison. Detective Jo Min-woo discovers that it is related to a homicide case that occurred 14 years earlier, where a woman had been suspected of murdering her married lover, a pawnbroker. Talking to the pawnbroker's widow and her adult son Yo-han gives no clue. Then Jo Min-woo requests assistance from lead inspector Han Dong-su, who was investigating this case 14 years ago. Detecive Han Dong-su remembers every fact as this unsolved case ruined his career and still eats his soul. And now, under the new circumstances, Han Dong-su uncovers bit by bit the truth on Yo-han's mystery.