China’s one-child policy has taken a toll on thousands of households and millions of individuals since its implementation in 1979. Amplified by gender bias and poverty, penalties imposed by the policy were reason enough for families to give up their daughters in hope of having sons, leaving thousands of baby girls without homes.

Now, these abandoned daughters are searching for their long-lost parents, over decades and across provinces. China’s Forgotten Daughters tells the story of one lost daughter’s impassioned search for her birth family, and the human cost of the one-child policy that has lasted for generations.