Seok-ho en Ye-jin vormen een echtpaar en nodigen hun goede vrienden uit voor een etentje. Ze spelen een spel waarbij ze alle inkomende berichten en telefoontjes met elkaar moeten delen. In het begin is er niks aan de hand, maar daar komt verandering in als ze steeds meer over elkaar ontdekken. Hoe goed kennen de vrienden elkaar eigenlijk?
Nee, helaas is 완벽한 타인 nog niet beschikbaar op Netflix in Nederland.
| Directing | JQ Lee | Director |
| Writing | Bae Se-young | Screenplay |
| Production | Lee Yong-nam | Producer |
| Art | Jo Hwa-seong | Production Design |
| Sound | Lee Seung-chul | Supervising Sound Editor |
| Camera | Kim Sung-an | Director of Photography |
| Sound | Lee Sung-jin | Sound Supervisor |
| Editing | Shin Min-kyung | Editor |
| Writing | JQ Lee | Adaptation |
| Production | Cha Won-chun | Executive Producer |
| Costume & Make-Up | Cho Tae-hee | Makeup & Hair |
| Sound | Mowg | Original Music Composer |
| Sound | Han Myung-hwan | Sound Mixer |
| Costume & Make-Up | Ko Hee-jung | Costume Design |
| Production | JQ Lee | Executive Producer |
| Production | Park Cheol-su | Executive Producer |
| Production | Jeong Gyeong-jae | Executive Producer |
| Editing | Kevin Kang | Digital Intermediate |
| Sound | Jeong Ji-young | Sound Effects Designer |
| Art | Park Gyu-bin | Production Design |
| Visual Effects | Lee Jeon-hyoung | Senior Visual Effects Supervisor |
| Visual Effects | Jung Hwang-soo | VFX Supervisor |
| Editing | Ryu Yeon | Digital Intermediate Producer |
| Editing | Park Jin-young | Digital Intermediate |
| Sound | Kim Seong-woo | Foley Mixer |
| Writing | Paolo Costella | Original Film Writer |
| Writing | Paola Mammini | Original Film Writer |
| Writing | Filippo Bologna | Original Film Writer |
| Writing | Paolo Genovese | Original Film Writer |
| Writing | Rolando Ravello | Original Film Writer |
| Sound | Go Dong-hoon | Production Sound Mixer |
| Visual Effects | Shin Dae-yong | VFX Supervisor |
| Visual Effects | Do Gwang-sup | Special Effects Supervisor |
| Visual Effects | Shon Byeong-su | VFX Artist |
| Visual Effects | Do Gwang-il | Special Effects Supervisor |
| Lighting | Lee Chul-oh | Lighting Director |
| Visual Effects | Jo Gyeong-hun | VFX Artist |
| Visual Effects | Yuk Gwan-woo | Visual Effects |
