In a futuristic Tokyo where melodies are mined from human memories and sold as digital commodities, a disillusioned sound engineer becomes entangled with a clandestine collective of underground musicians who claim to have found the ‘perfect’ song locked within the fragmented memory of a comatose woman. As he extracts deeper fragments, the music reveals a shocking connection to his own veiled past, pushing him to choose between rewriting history and preserving his reality.