Creator Hwang Dong-hyuk and Emmy winner Lee Jung-jae are back for more death-defying games and nefariously masked villains as the series returns after a three-year absence.

Around the same time, South Korea rapidly grew rich, benefitting from an export boom in cars and electronics. And money from conglomerates, or chaebols as they are known, flowed into film and TV production, giving it a Hollywood-like sheen.

Vietnamese authorities are reviewing whether the second season of the Netflix smash-hit series violates the law amid calls for a boycott.