Children are a mirror of family, and family is a mirror of society. The Mirror, China's first documentary produced by CCTV Social and Legal Channel, presents sociological samples of three families through objective and calm records, which makes people re-examine the emotional problems such as parent-child relationship faced by families in China today, and provides sufficient space for the audience to think.

The film tells the story of three families who are in trouble because their children drop out of school. Parents have no choice but to send their children to a special school for "reform", but unexpectedly let themselves receive an enlightenment education that touches the soul. There is often a problem behind "problem children": the existence of family education model.

Zhang Tongdao, a judge of the documentary unit of the Beijing International Film Festival, said, "Now many of our documentaries provide chocolate, and Mirror is a medicine. It is the responsibility of the documentary itself to provide people with a mirror, provide strength for life and make society more harmonious. "