There is Someone Behind

Dr. Wu Xiaozhou of Heyuan Mental Hospital has a habit of always sitting against the wall because he is afraid that someone will suddenly rush over from behind and strangle him by the neck... Dr. Meng Xiuwen, a newly assigned medical graduate student, has a memory blank in her mind. She is often troubled by her intermittent amnesia, but she does not know that danger is approaching from behind... After graduation, Meng Xiuwen volunteered to work in Heyuan Mental Hospital. On the way to the hospital, Meng Xiuwen encountered a car accident, and the person who died happened to be the patient who escaped from the mental hospital that night. That night, Meng Xiuwen temporarily stayed in the doctor's lounge and was startled by Yan Yongqiao who was hiding from the rain outside the window. Yan Yongqiao introduced himself as the husband of Dong Feng, a bridge engineer and nurse. He told Meng Xiuwen that Dong Feng had recently seen ghosts in Ward 219, where many people had died, and was therefore mentally unstable. But the next day, Dong Feng said that he was not married at all, and the person who died in the car accident was the patient Yan Yongqiao. Could it be that Meng Xiuwen also encountered a ghost? Meng Xiuwen attended the memorial service of Yan Yongqiao, who died mysteriously. At the memorial service, her belief in pursuing the truth drove her to investigate the case. She questioned Yan Yongqiao's wife Wang Ying and her former girlfriend Xu Hong, a draftsman at the bridge company, and found that Yan Yongqiao was a sexually abusive person during his lifetime. Nurse Dong Feng because