Ichi might appear to be a spineless weakling, but once the tears begin to flow, a terrifying transformation occurs. Pushed to his mental breaking point, Ichi turns into an unstoppable force of carnage, unleashing a torrent of violence upon his next target. When his destructive path crosses with Kakihara, a sadomasochistic yakuza boss with a penchant for pain, it sparks a bloody spiral of chaos, depravity, and unimaginable brutality.