Struggling to support herself and teenage daughter, a widow rents out the second floor of her home to a man who claims to be a novelist working on a new book.
| Actor | Role |
|---|---|
 Kim Hye-sooYeon-ju | Yeon-ju |
 Han Suk-kyuChang-in | Chang-in |
 Ji WooSung-ah | Sung-ah |
 Kim Ki-cheonSung-sik | Sung-sik |
 Lee Yong-nyeoNext Door Neighbor | Next Door Neighbor |
 Shin Dong-hoHyun-chul | Hyun-chul |
 Lee Jang-wooOh Soon-kyung | Oh Soon-kyung |
 Uhm Ki-joonCo. President Ha | Co. President Ha |
 Park Won-sangHam Gi-soo | Ham Gi-soo |
 Park Hyuk-kwonSection Leader Jo | Section Leader Jo |
 Yoon Hee-seokDoctor | Doctor |
| BBae Jang-suReal Estate Agent | Real Estate Agent |
 Oh Jae-kyunSong | Song |
| KKim Soo-minStudent 1 | Student 1 |
| KKwon Hyeok-seokSong's minion | Song's minion |
| KKim Woo-hyukSong's minion | Song's minion |