Chen Sen, a doctor with a high IQ who suffers from multiple personalities, and Nie Changfeng, a psychiatrist who treated Chen Sen when he was ill, will carry out a death plan in Chen Sen's subconscious in order to successfully complete the virus experimental project that is of great concern to the country and save his colleagues and friends infected by the virus. So where will his ego personality and split personality go? Why did Nie Changfeng treat Chen Sen when he was ill? What was his purpose in participating in the plan?