Seong-jin, a conductor and Su-yeon, a cellist, are about to get married soon. But Su-yeon suddenly disappears, leaving just a farewell video. Mi-joo, who substitutes for Su-yeon as cellist, comes into Seong-jin’s life. They start to get closer and have a secret relationship. But as their relationship grows deeper, they can’t shake the feeling that someone is watching them. As the secrets reveal itself, the desires are unveiled.
Unfortunately the movie Hidden Face is not yet available on HBO Max.
| Directing | Kim Dae-woo | Director |
| Art | Park Elhen | Production Design |
| Writing | Arturo Infante | Original Story |
| Writing | Hatem Khraiche | Original Story |
| Writing | Hatem Khraiche | Original Film Writer |
| Writing | Andrés Baiz | Original Film Writer |
| Directing | Jeon Se-ha | Assistant Director |
| Writing | Roh Deok | Writer |
| Writing | Hong Eun-mi | Writer |
| Writing | Kim Dae-woo | Adaptation |
| Writing | Kim Bong-joo | Adaptation |
| Camera | Kim Dong-young | Director of Photography |
| Costume & Make-Up | Choi Eui-young | Costume Design |
| Costume & Make-Up | Park Sun | Makeup & Hair |
| Visual Effects | Hong Jang-pyo | Special Effects Supervisor |
| Editing | Kim Sun-min | Editor |
| Sound | Lee Jae-jin | Music |
| Sound | Han Myung-hwan | Sound |
| Visual Effects | Oh Serk-keun | VFX Supervisor |
| Editing | Park Jin-young | Colorist |
| Production | Kim Woo-taek | Executive Producer |
| Lighting | Kim Hyeong-yong | Lighting Director |
| Camera | Kim Dong-jin | Key Grip |
| Sound | Yun Seong-gi | Production Sound Mixer |
| Art | Choi Hong-seob | Set Decoration |
| Art | You Cheong | Props |
| Art | Park Jun-yong | Props |
| Costume & Make-Up | Hwang Hyo-kyun | Special Effects Makeup Artist |
| Costume & Make-Up | Kwak Tae-yong | Special Effects Makeup Artist |
| Production | Park Gyeong-seo | Producer |
| Production | Song Ji-eun | Producer |
| Production | Park Jae-hyun | Producer |
| Production | Choi Pyung-ho | Executive Producer |
