Although Junichi returns to work, suddenly there is intense friction with his colleagues. Also, due to his sensitization to sound made by his neighbors, his attack impulse is gradually growing. Megumi feels fear and anxiety when she reveals that she overheard the words "brain transplant" while at the hospital. Dogen (Masato Ibu), one of the ones responsible for his surgery, responds calmly when he's taking by the collar and proposes psychoanalysis. What did Junichi see in his hypnotic state...