Rina, a married woman who can't let go of her headphones, has felt unfulfilled since marriage. Every time she remembers the passion from her past, she builds her own world in music. Meanwhile, a young man named Atsushi who works at a convenience store becomes infatuated and obsessed with Reina. Before he knows it, her existence becomes his reason for living. His infatuation turns into madness, and as the line between reality and fantasy blurs, Reina's "world of sound" gradually gets invaded. Invisible gaze, inaudible voice, everything starts to warp in the silence...
