Lee Woo-chul

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.

When raw gold is discovered deep in the woods, a group of gold hunters arrive to mine it. Several neighbors in the area witness the hunters by chance and find themselves in danger. Among the witnesses, hunter Ki-sung risks his life to protect the other witnesses and engages the gold hunters in a cat-and-mouse game of death.

10 years ago, Mi-ju lost her ambition to become a cellist when her entire family was brutally murdered. Due to the trauma, she now leads a quiet life as a teacher with her husband and children. However, dreadful events begin to occur.