S01E12 — If I Had to Kill Somebody...

Team 1 arrest Joo Yeong-Jae’s mother for abuse as she was a witness to the beating and did not interfere. Na Bong-Sung provides Lee Hyun with enough evidence to support his theory that Attorney Jung is his brother Lee Min. Min catches Hyun at his home looking at his paintings. Hyun request Min not to kill anymore but if he has a need to kill him first. Photos are delivered to the precinct that are threatening to Lee Hyun. Convinced that it is possibly a professional killer out to take revenge for the death of his girlfriend, Hyun believes that he will be punished by the death of Ji-An or Min.