For decades, families across India and China favored sons so strongly that daughters were aborted, killed as infants, abandoned, or sold. Economist Amartya Sen warned in 1990 that more than 100 million women were "missing" across the developing world because of this preference, and the film opens with that number before tracing its human cost. Sex ratios skewed so far that many men in both countries now cannot find wives, a shortage that is finally forcing a rethink in politics and society. DW's cameras follow activists, teachers, and policymakers running educational campaigns and legal measures meant to reverse decades of bias, and interview families who describe choosing to celebrate a daughter's birth rather than treat it as a burden. The film moves between India and China, letting officials, parents, and unmarried men explain how the shortage reshaped marriage markets and daily life. It is a sober account of a demographic crisis engineered by decades of discrimination, and of the slow, uneven effort now underway to undo it.