Jung-ah and her husband Hyeon-soo suffer sleepless nights from the passionate couple upstairs, Su-kyeong and Mr. Kim. Hoping to ease tensions, Jung-ah invites them to dinner — but polite chatter soon unravels into raw, boundary-breaking honesty, exposing hidden cracks in relationships with biting wit and emotional precision.
| Actor | Role |
|---|---|
 Ha Jung-wooMr. Kim | Mr. Kim |
 Kong Hyo-jinJung-ah | Jung-ah |
 Lee HaneeSu-kyeong | Su-kyeong |
 Kim Dong-wookHyeon-soo | Hyeon-soo |
 Lee Ji-hoonNude Model | Nude Model |
 Oh Dal-suMan-Next-Door | Man-Next-Door |
 Cha Tae-hyun6th Floor Couple | 6th Floor Couple |
 Ji Ye-eun6th Floor Couple | 6th Floor Couple |
 Hyun Bong-sikHo-chan | Ho-chan |
 An So-heeSon Hyun-joo | Son Hyun-joo |
 Lee Soo-inDownstair | Downstair |
| HHwang Hye-rimArt Student | Art Student |
| KKang Han-biArt Student | Art Student |
| JJin Seo-yiArt Student | Art Student |
| PPark Seo-jinArt Student | Art Student |