Working overtime late at night, through the office glass, he could always see a window with a light on in the abandoned building opposite. Under the lamp, a figure exactly like him was waving to him. At first he thought it was a hallucination due to fatigue, until that day, the calendar on his desk was torn to three months in the future, and all his colleagues said that he had been "missing" for ninety days. In order to regain the stolen time, he was forced to step into the bizarre and mysterious world under the shadow of the city and play with the invisible rules. Behind every bizarre incident, there is a common totem - a closed eye. When he finally pried open the slit in that eye, what he saw was his own reflection slowly looking back.