"Why do you keep calling me jagiya, huh? you have a crush on me or something?" I shouted, still pointing my finger at him. Everyone was silent and shocked, no one dares to speak anything as Moon-Joo was standing right infront of me. "You have no idea how bad I wanted kiss those lips." The reason why Jong-Woo moved to seoul is because he was offer a job from his senior that just started a new company and decided to take him in and hire him as an intern. Not only that, he finally get to meet his girlfriend who is also currently working in seoul. However, mysterious events start occurring in the apartment, causing Jong Woo to start fearing the apartment's residents. To make matters things worse, his next door neighbor Seo Moon Jo, a charismatic dentist won't stop calling him jagiya.

Jong Woo moves into what appears to be a run down residence but nothing more than that. However, during his stay at this residence he encounters Moon Jo, a reserved dentist. When things start going sour between the people in the residence, and people are dropping like flies, going missing out of nowhere he can't help question whether the culprit is in between these walls.