A young lady who has recently moved out on her own claims to the authorities that a user of a second-hand selling app sold her a damaged washing machine, only to discover that he is a psychotic serial murderer.
Is Don't Buy the Seller on Netflix? Yes! The movie Don't Buy the Seller is now on Netflix in the countries listed below.
| Directing | Park Hee-kon | Director |
| Lighting | Lee Chul-oh | Lighting Director |
| Writing | Park Hee-kon | Writer |
| Production | Kim Kwan-hun | Producer |
| Production | Hong Jeong-in | Executive Producer |
| Camera | Baek Yoon-seuk | Director of Photography |
| Sound | Ahn Sung-il | Production Sound Mixer |
| Art | Lee Mi-kyoung | Production Design |
| Art | Nam Seong-ju | Set Decoration |
| Art | Kim Soon-geun | Props |
| Costume & Make-Up | Kim Jung-won | Costume Design |
| Crew | Kim Jung-min | Martial Arts Choreographer |
| Visual Effects | Hong Jang-pyo | Special Effects Supervisor |
| Editing | Han Eon-jae | Editor |
| Editing | Han Young-gyu | Editor |
| Sound | Jang Young-gyu | Original Music Composer |
| Sound | Lee Ki-jun | Sound Supervisor |
| Visual Effects | Kim Byeong-rae | VFX Supervisor |
| Editing | Park Jin-young | Digital Intermediate |
| Writing | Kim Dong-hoo | Writer |
| Production | Cho Byeong-yeon | Executive Producer |
| Camera | Hong Eue-su | Key Grip |
| Costume & Make-Up | Park Song-hee | Makeup & Hair |
