A sudden car accident dramatically changes the personality of Mi You, the timid and reticent wife of the pharmaceutical giant Qi Zhong Group's second son. She soon discovers that the car accident was not an 'accident' at all. At the same time, Han Yicheng, the newly appointed CFO of the Qi Zhong Group, is secretly investigating the group's illegal drug trials from years past. After her divorce, Mi You and Han Yicheng join forces to investigate and uncover the truth behind the scenes.