More than two decades after Ghost in the Shell comes another anime fable about a world controlled by technology. In fact case of Harmony, humanity is controlled by a system known as WatchMe, which uses augmented lenses to analyze every action that a person makes and ensure that they make the right choices. Tuan's friend Miach was against this system and wanted Tuan to participate in a suicide pack, which she ends up surviving. With Miach supposedly dead, Tuan is constantly haunted by the decision she made many years ago.
If there was a little fine-tuning made to Harmony, it could have easily been a Ghost of the Shell of a new generation. However, the film is ultimately less about this supposedly Utopian society controlled by technology and more about Tuan trying to find closure from her past. Harmony is still a fine film, but it could have easily been more.