In 1990, Zhao Weicai was 40 years old and had no girlfriend yet. His relatives and friends were very anxious. His father had 4 brothers and sisters, the fourth eldest, and the eldest was a girl. So Zhao Weicai had an aunt named Zhao Chunmei. In February 1990, shortly after the Spring Festival, Zhao Chunmei introduced a girlfriend to Zhao Weicai named Fang Tingting, a girl who looked very quiet, but just a month after they met, Fang Tingting was diagnosed as mentally ill and hospitalized. Because of this, Zhao Weicai blamed his aunt for introducing such a person. But the strange thing is that another month later, Zhao Weicai took the initiative to visit Fang Tingting in the mental hospital. Since then, Fang Tingting's condition has suddenly deteriorated and she died in a mental hospital. No one in the Zhao family wanted to mention this matter, and Zhao Weicai acted as if nothing had happened. At that time, some people said that Fang Tingting was killed, but there was no evidence, and it was unknown where the news spread from the neighbors. So Liu Qingchun contacted the mental hospital, planning to visit the room where Fang Tingting had an accident. However, the hospital believed that the police came to investigate a matter that had not been filed during the day, and it would not be good if it spread out, so they decided to give Liu Qingchun some time at night to freely enter and leave the isolation area of the hospital without affecting or disturbing the patients. Li Jun, director of Anping Psychiatric Hospital, confessed: "I'm really sorry for Team Liu. Since Fang Tingting's incident, the hospital has been greatly affected. In order to avoid greater losses, we cannot allow you to investigate without filing a case. After that incident, even the night shift of the nurse on duty was cancelled, and other patients were also affected to varying degrees because of this incident, and some have already been transferred. You can go and see in your own name, but please don’t affect the rest of the patients, I Personally, I still think that Fang Tingting committed suicide." That night Liu Qingchun came to the inpatient department of Anping Psychiatric Hospital.