Seung-jin, who is preparing for an audition to pursue his ambition of becoming a singer, moves into a new studio apartment. On the first night, as he just started to settle in, he hears a woman wailing from next door. With all the noise she makes owing to her badly soundproofed room, La-ni has driven away several neighbors. Seung-jin isn't one to back down easily. Their argument intensifies to the point that they have discovered everything about one other's life through their noises save for their names and faces.

2017 film by Lee Won-tae

秀赫是一个乡村小学的老师。他有一个秘密：每天晚上，他的妻子易英都会变成另一个人。有一天，他的一个学生的父亲知道了他们的秘密，并告知村民易英的身体每晚被一种恶灵所占据。村民一致认为易英非常危险，他们要求易英每晚进入上锁的笼子。结果这对夫妻很快在不明原因的大火中丧生。一名警探被派来调查，他一个接一个地审问村民，村子上的气氛逐渐变得诡异。一天晚上，村民们邀请警探到市政厅喝一杯。喝酒后，警探失去了意识。第二天，警探在之前那个笼子里醒来，但是每个人都称他为“老师”。他意识到自己已经变成了秀赫……

2019 film by Lee Won-tae

2013 film directed by Park Hoon-jung