Everybody Had a Plan, a piece of the fourth season of Modern Korea, directed by producer Han Seokgu, delves into Korea's population control policies during its economic development era. The film is framed by a series of potent terms: birth control, 0.72 children per household, "Is it a boy?", overcrowded elementary schools with up to 8,100 students, family planning, population explosion equated with human extinction, sterilization surgery, and the "vasectomy man." Centered around the catchphrase "Have two children and raise them well," the documentary explores how these policies, implemented as part of Korea's modernization efforts, have ironically led to today's population decline. The film opens with politician Kim Chongin, former Minister of Health and Social Affairs in the late 1980s under the Roh Taewoo administration, reflecting on his advocacy to end birth control policies despite opposition—a stance that now seems prescient yet paradoxical. Everybody Had a Plan examines the tension between state ideals and individual freedoms during this era of supposed enlightenment. It highlights controversial decisions, such as dispatching officials to remote villages to enforce family planning and mandating vasectomies for men during reserve military training. By revisiting this period from 40 years ago, the film offers a sobering lesson: while everyone may have had a plan, it was the "unchecked inertia" of these policies that ultimately derailed them.