In a smart model city that claims to have “zero crime,” everything is under the control of data. There is no real night here, because every corner is watched over by the AI surveillance System known as “Guardian.” Yet on the night the city celebrates an upgrade to its surveillance network, a murder scene never seen before suddenly appears in a holographic projection, tearing away the perfect disguise of this “silent city.” Every piece of evidence in this seemingly “impossible” murder points to a “ghost” long forgotten by society, whose digital identity has even been erased.
