Watch Mouse S01e20 210519 720p-next 1 ›

Ba-reum is sentenced to death and spends his final days in extreme physical and emotional agony.

Although she cannot forgive Ba-reum for killing her grandmother, she chooses to live her life as a survivor rather than a victim.

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. Watch Mouse S01E20 210519 720p-NEXT 1

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

Ba-reum chooses to enact justice on his own terms by killing his father, Han Seo-joon, in prison—fulfilling Detective Go Moo-chi's long-standing wish for revenge. Redemption and Death Ba-reum is sentenced to death and spends his

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.

The finale centers on Ba-reum's desperate quest for atonement, even as he knows he can never truly be forgiven by his victims' families. 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: