最後金泰俊上樓向鄰人溝通，結果出現了像是故意製造出來的聲音，他固然惱火，但也突然產生一個動機：「也許這個故事可以拍成片子。就在那一刻，我完全確信了，這不只是樓上樓下之間的糾紛。我才驚覺，啊，本來底子不是樓上的問題。
」所以他也在片中加入「爬上樓去找樓上住戶」的劇情。」結果在完成腳本初稿的那天，樓上的住戶搬走了，「帶給我靈感的人脫離了，但沒想到那天凌晨，那熟習的聲音又呈現了。
徐賢宇扮演姜河那樓上的鄰人。（圖／Netflix供給）
導演金泰俊受訪時，便分享本片靈感出自於他的親自經歷。","publisher":{"@type":"Organization","name":"Yahoo奇摩新聞","logo":{"@type":"ImageObject","url":"https://s.yimg.com/cv/apiv2/twmobi/icon/yahoo_tw_logo_structuredata_20200630.png","width":136,"height":60}},"author":{"@type":"Organization","name":" 許瑞麟｜Yahoo名人文娛特派記者","url":"https://tw.mobi.yahoo.com/trendr/yahoo_ent_2","logo":{"@type":"ImageObject","width":1200,"height":360,"url":"https://s.yimg.com/os/creatr-uploaded-images/2025-02/90bc67a0-ef60-11ef-bfbf-4f2117089174"}},"creator":{"@type":"Organization","name":" 許瑞麟｜Yahoo名人文娛特派記者","url":"https://tw.mobi.yahoo.com/trendr/yahoo_ent_2","logo":{"@type":"ImageObject","width":1200,"height":360,"url":"https://s.yimg.com/os/creatr-uploaded-images/2025-02/90bc67a0-ef60-11ef-bfbf-4f2117089174"}},"provider":{"@type":"Organization","name":" 許瑞麟｜Yahoo名人娛樂特派記者","url":"https://tw.mobi.yahoo.com/trendr/yahoo_ent_2","logo":{"@type":"ImageObject","width":1200,"height":360,"url":"https://s.yimg.com/os/creatr-uploaded-images/2025-02/90bc67a0-ef60-11ef-bfbf-4f2117089174"}},"image":{"@type":"ImageObject","url":"https://s.yimg.com/ny/api/res/1.2/jx.NsDGZtiV4BbttwZue0w--/YXBwaWQ9aGlnaGxhbmRlcjt3PTI0MDA7aD0xNjAw/https://s.yimg.com/os/creatr-uploaded-images/2025-07/fe4dde30-6abb-11f0-8fdf-e6c6c071705c","height":800,"width":1200},"thumbnailUrl":"https://s.yimg.com/ny/api/res/1.2/jx.NsDGZtiV4BbttwZue0w--/YXBwaWQ9aGlnaGxhbmRlcjt3PTI0MDA7aD0xNjAw/https://s.yimg.com/os/creatr-uploaded-images/2025-07/fe4dde30-6abb-11f0-8fdf-e6c6c071705c"}
離婚證人Netflix《牆外之音》買房竟成噩夢初階！導演真實經歷曝結局寄義
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