Since childhood, because his father preferred sons over daughters, Zhenren (played by Shen Huishan) ran away from home and became self-reliant in middle school and was cut off from his family. Zhenren later became a top defense lawyer on her own, and in an accident, she learned that her Alzheimer's mother Huazo (Pei Zongyu) was suspected of killing her father and killing many innocent people at the same time. The suspicious Zhenren decided to act in person. under layers of obstruction, how could she reverse the confession for her mother and uncover the dark truth behind the murder?