On a February morning in 2017, two women smear a nerve agent on Kim Jong-nam's face inside the departures hall of Kuala Lumpur airport, and he is dead within an hour. This film investigates the assassination of Kim Jong-il's estranged eldest son, the half-brother North Korean leader Kim Jong-un reportedly viewed as a threat to his rule. Interviews with journalists, intelligence analysts, and people who knew Kim Jong-nam trace his years of exile in Macau, his casino gambling, and his outspoken criticism of his family's dynastic grip on power. CCTV footage from the airport terminal anchors the investigation, showing the attack itself and the confusion in its immediate aftermath. The film weighs the case against the two women eventually arrested, both of whom claimed they thought they were taking part in a prank for a hidden-camera show, against the broader evidence pointing toward North Korean state involvement, including the diplomats who left the country within hours of the killing.