The Japanese government decides to even further regulate superheroes AND the overall populace using the Vector Card, a new ID system. Vector also happens to be a corporation that has been gradually extending its power behind the scenes. Our hero, Soma Kusanagi, is a foul-mouthed ruffian marked as a persona non-grata by not only the government, but also Vector. However, he’s one of the only people who can equip the “Stray Buckle” which transforms him into the hero Strega. Due to his pariah status, Soma, the former Gun Caliber, is forced to keep his newfound identity of Strega secret from the public eye. When a mysterious, yet boisterous Vector Card hacker emerges with a sinister plot to turn all of Tokyo into monsters, Soma is partnered up with a new recruit, Sayuri. Tokyo’s fate now depends on the two unlikely heroes rising to their greatest challenge yet.

膨大な数のヒーローたちが守る近未来の日本！だがヒーロー業界の最底辺には、やる気がないやつらも大勢いた。アルコールとドラッグと風俗が大好きな男クサナギ・ソーマもそのひとり。だらしなくてスケベ―で人助けや自己犠牲なんてたぶん知らない。だが悪の怪人が人々をおびやかした時、クサナギは『ストレガ』に変身。問答無用で悪をぶち殺し、正義を実行するのだ！
この映画が、あなたの五感に炸裂する！「ストレガ」の雄たけびを受け取れ！