A sudden car accident changed the personality of the cowardly and forbearant second daughter-in-law of the pharmaceutical giant Qi Zhong Group, Mi You (played by Ding Ran). Later, she realizes that the car accident she suffered was not an "accident". At the same time, Han Yicheng (played by Li Jiulin), the new CFO of Qizhong Group, is secretly investigating the group's illegal drug testing many years ago. So, after the divorce, Mi You and Han Yicheng joined forces and cooperated with each other to investigate the truth behind the scenes.