Many years ago, an unexplained fire broke out in Dream Department Store, causing heavy casualties. After a year of renovation, a series of murders occurred just before reopening. The strangest thing is that all the victims were killed in front of the mirror. Hu Enming (Liu Zhitai), the security supervisor of Dream Department Store, is under great pressure. At the same time, the police took over the investigation of a series of murders led by Hu's former colleague Xia ().
At this time, a woman with a history of mental illness haunted the department store like a ghost. She claimed to be the twin sister of a deceased person in the fire, and insisted that her sister was still in the department store and must be found immediately, or something terrible would happen. She often mumbles to herself in the mirror, just like there is another world in the mirror ... The key to this case seems to be her twin sister. Is she alive or dead, a person or a ghost? Why are all murders related to mirrors?
Yongming was originally a policeman. Because of mental problems, he killed his colleagues by mistake and was dismissed. Later, he went to work in the security department of a department store, but he still couldn't adapt to the new life.
The department store where Yingmin worked was closed a year ago because of a fire. Just a week before the company reopened, there were a series of serial murders in department stores, but the police had no clue about this serial murder case, except that all the dead died in front of the mirror.
Because of the lack of progress in the case, rumors have come and gone, including that the murder was committed by the soul of the person who was burned to death in the fire that year, and even that Yongming did it when his old illness recurred. In order to prove his innocence, Yongming investigated the secret alone. ...
The female employee of the department store went into the bathroom alone and looked in the mirror. When she squatted down to retrieve her employee ID card, the image was different from her. On the contrary, she took a sharp weapon and cut it to her throat ... The male employee left the company by elevator alone, watching the overlapping images, feeling uneasy and subconsciously stirring the ballpoint pen in her ear hole. In front of the mirror, he not only dropped his pen, but also gave a "ah" ...