December 2021, Tokyo district court. Akihiro Ehara stands accused of groping a woman on a crowded train. A bystander’s video footage of his attempt to flee the scene and subsequent apprehension is all over the news, and public outcry demands a maximum sentence.
His defense lawyer, Saori Shirosaki, has no doubt that crucial details of the situation have been overlooked, as Ehara was not even tried for the murder. She contacts detective Takayuki Yagami to investigate this further.
As victims surface and Yagami digs farther into the truth, he is faced with a question: Defend the law, or enact justice?
From just a single stumble, one can become a monster.