Hyun-su and Soo-jin have just gotten married. Seemingly out of nowhere, he starts talking in his sleep. 'Someone’s inside.' From that night forward, whenever he falls asleep, he transforms into someone else with no recollection of the night before. Soo-jin is overwhelmed with anxiety that he’d hurt her family while she sleeps and can barely sleep a wink because of this irrational fear. Despite sleep treatment, Hyun-su’s sleepwalking only intensifies, and she begins to feel that her unborn child may be in danger...
Unfortunately the movie Sleep is not yet available on HBO Max.
| Directing | Jason Yu | Director |
| Writing | Jason Yu | Screenplay |
| Art | Kim Nam-ho | Set Decoration |
| Art | Lee Sang-hun | Props |
| Costume & Make-Up | Yang Hyeon-seo | Costume Design |
| Costume & Make-Up | Kim Eun-ha | Makeup & Hair |
| Sound | Park Seong-ho | Production Sound Mixer |
| Crew | Park Young-sik | Martial Arts Choreographer |
| Visual Effects | Jeon Gun-ik | Special Effects Supervisor |
| Visual Effects | Kim Dong-myeong | Visual Effects Supervisor |
| Editing | Lee Hye-min | Colorist |
| Production | Choi Moon-seok | Co-Executive Producer |
| Production | Kim Hee-gyeong | Producer |
| Production | Lewis Taewan Kim | Executive Producer |
| Camera | Yoon Jong-woon | Key Grip |
| Directing | Lee Hyung-seob | Assistant Director |
| Camera | Kim Tae-soo | Director of Photography |
| Editing | Han Mi-yeon | Editor |
| Art | Shin Yoo-jin | Production Design |
| Sound | Gong Tae-won | Sound Supervisor |
| Lighting | Lee Je-woo | Lighting Director |
| Sound | Jang Hyeok-jin | Original Music Composer |
| Production | Choi Pyung-ho | Executive Producer |
| Production | Choi Byung-hwan | Executive Producer |
| Sound | Jang Yong-jin | Original Music Composer |
| Art | Jung Hyo-eun | Props |
