破窗效应显现，细小问题若不重视，必将引发更大麻烦。牝教师4

　　Zheng was born in a family struggled by domestic violence. After he had grown up, he tries to escape from the shadow within his heart, but ends up meeting another woman, Shu Ya, whom is currently suffering from domestic violence too. After hard times making decision, Zheng is finally helping Shu Ya out, and a step forward to face his childhood trauma at last.