As her contract renewal approaches, Bok-soon wants to retire to focus on her troubled daughter, who hides a violent secret. However, the agency’s cold CEO, Cha Min-kyu (Sul Kyung-gu), has other plans. Tensions escalate when Bok-soon disobeys a direct order to kill a young target, and her ambitious colleague (and former lover) takes the job instead. This triggers a bloody chain of betrayal, all-out assassinations, and a brutal final confrontation in a high-rise building.

The Vietsub keeps the chilling ambiguity intact. “Kết thúc? Chưa đâu. Mẹ con mình còn sống mà.” (“The end? Not yet. Mom and I are still alive.”)

Fans of John Wick (but with corporate satire), The Villainess , or My Mister (for emotional depth).

Kill Boksoon succeeds as both a stylish action film and a heartfelt mother-daughter drama. With the official Vietsub, Vietnamese viewers lose none of the sharp dialogue or cultural context. The translation balances violence and emotional weight—essential since the film’s best moments are not the kills, but the silences between Boksoon and her daughter.