Johnny, shop worker, has a special skill to install a hidden cameras anywhere. Soon, his paranoid boss takes advantage of this fact, and delegates a man to install cameras in increasingly strange parts of the store. However, Johnny doesn't expect that the recordings from it, soon become his new passion. Johnny not only begins to study human behavior captured on them, but also begins investigations, aimed at solving puzzles related to the store and its customers. (Source: Chinese = Douban || Translation = MyDramaList)