It feels particularly relevant to view this film now, given how governments worldwide are readily agreeing to what global technology companies want in order to push forward with artificial intelligence. The story does a smart job of showing how easily a group of people comparable to those in “Will Hunting” can be utilized to break even the most complicated numeric codes—codes consisting of 2,000 digits—and grant unauthorized access to a network that oversees nearly everything we do, from using our phones to launching nuclear weapons. "Kenji," who’s accepted a job that turns out to be quite different than what “Natsuki” led him to believe, finds himself at her grandmother's 90th birthday celebration pretending to be her boyfriend. He seems pretty anxious and then receives an online puzzle from “OZ,” the network itself, which he answers. Soon after, it’s been breached by a progressively aggressive AI that is determined to gain knowledge and power and will do whatever it takes. When "Kenji" gets singled out and blamed, only a very unusual intervention from his grandmother and a consistent effort from her family and his friends might give them a chance to stop this dangerous creation. The animation initially features images reminiscent of childhood kaleidoscopes displaying bright, crystalline shapes, before moving into a frequently sharp comedic exploration of family customs, teenage feelings, and menacing threats endangering the entire internet. You probably won’t find another movie that so clearly shows how reliant we are on this network of cables and zeroes for much of modern life—not just our social lives, but our actual lives too are managed, and if control of it falls into the wrong hands, humanity could be in serious trouble. The final thirty minutes concentrate a bit more on resolving that issue, and the fast-moving action animation is supported by a believable amount of scientific reasoning. In some respects, it’s almost like a horror film—particularly when you consider it: first love or online dangers?

Source on TMDB