Some memories should never be awakened, and some truths should never be revealed.
Criminal investigation captain Song Yan took over a series of bizarre murder cases - the victims were carefully posed in the same poses as in old photos, with a piece of incomplete film always left next to them. As the investigation deepened, he discovered that all the clues pointed to a missing child case in Qinghe Town thirty years ago. The records of the case had been artificially erased, and the only insider was his father who had been missing for many years.
Ji Yuqing, the owner of an old-fashioned photo studio, lost his memory due to a car accident three years ago. When the film of the murder scene was developed in her hands, those supposedly unfamiliar images triggered nightmare flashbacks in her. She didn't know that her broken memory contained the murderer's carefully crafted murder script, and that the man with a severed finger who always appeared on rainy days was using the images in her mind to select the next victim.
When Song Yan discovered that the seven pinholes on the back of Ji Yuqing's neck were arranged like the Big Dipper, and when Ji Yuqing's developed films began to preview future murders, they had to find the truth in the twisted maze of memory. When the carousel turned to the seventh circle, the secret witnessed by the five children was slowly emerging in the developer...
