It puts the collar on you in the first act and then refuses to let you forget it. Ichika Hoshino spends this whole thing with a poison capsule pressed against her throat, and the tension isn't the countdown, it's that every single person offering to help her has a reason to be lying. Adonis turned Shinjuku into a city where the public cheers for murder, and the film leans into that rot instead of softening it: the crimes are ugly, the police are compromised, and Ichika's badge means nothing to anyone. Five men close in around her, and because this is an otome story rendered as film, you don't get to pick one, you get to watch her weigh all of them at once. What sticks is smaller than the conspiracy. A cop who keeps working the case because sitting still is worse than dying.
Shinjuku is thrown toward chaos as a dangerous shadow organization spreads fear and violence through the city. A young police officer assigned to restore order is attacked, and a poisonous collar is fastened around the officer's neck. As events spiral and time runs short, five mysterious strangers step forward to help in the search for the truth. With each of them an unknown quantity, the officer has to decide who can be trusted while racing to survive and to rescue Shinjuku from ruin. The film blends mystery, romance and thriller.