Watch the dramatic moment when Ba-reum's past finally catches up with him:
The series finale of the South Korean thriller Mouse (Episode 20), which aired on May 19, 2021, delivers a haunting conclusion to the "nature vs. nurture" debate that defined the series. This episode marks the final transformation of Jeong Ba-reum (Lee Seung-gi) from a cold-blooded predator into a man utterly consumed by the weight of his own conscience. The Ultimate Punishment: Empathy Watch Mouse S01E20 210519 720p-NEXT 1
The government official behind OZ, Choi Young-shin, is arrested, and the controversial bill to abort fetuses with the "psychopath gene" is ultimately rejected, emphasizing that one's genes do not have to dictate their fate. Watch the dramatic moment when Ba-reum's past finally
Ba-reum is sentenced to death and spends his final days in extreme physical and emotional agony. By transplanting parts of the empathetic Sung Yo-han's
The episode also resolves the fates of the supporting cast and the societal impact of the OZ organization's actions:
In a twist of poetic justice, the very brain surgery intended to save Ba-reum's life becomes his greatest torment. By transplanting parts of the empathetic Sung Yo-han's brain into his own, Ba-reum is forced to feel the visceral pain and guilt of his previous murders.
He eventually visits Ba-reum’s unmarked grave, suggesting a complex form of closure and a sliver of forgiveness for the man who was both his partner and his enemy.