One day, psychiatrist Ye Ming received a case of treating dual personality. This was the first major patient he had joined the clinic to take charge of, and it was also a very difficult disease. The first meeting, which he thought would be a pleasant one, unexpectedly saw the patient's second personality, and he was warned that the disease seemed to be serious. Ye Ming, who wanted to cure Mo Yuchuan, accidentally got involved in the personality war between Mo Yuchuan and Shao Pingsha. As the treatment gradually deepened, Ye Ming discovered that the truth might be different from what he thought, and fell in love with Shao Pingsha, but sometimes he would also wonder, which one of Mo Yuchuan and Shao Pingsha is the main personality? And does he love Shao Pingsha or Ye Ming?