Ahn is a suicidal saxophonist, Mun is violent simpleton with an I.Q. of 80 and Maria is single mother with dreams of becoming a nun. Ahn has tried numerous times to kill himself but nothing ever works. When he witnesses his wife infidelity, it is the last straw.
Unfortunately the movie Trio is not yet available on HBO Max.
| Directing | Park Chan-wook | Director |
| Writing | Park Chan-wook | Writer |
| Editing | Park Gok-ji | Editor |
| Costume & Make-Up | Heo Jeong-im | Makeup & Hair |
| Production | Lee Mi-young | Producer |
| Writing | Lee Mu-yeong | Writer |
| Camera | Lee Eun-gil | Director of Photography |
| Production | Lee Choon-yun | Executive Producer |
| Lighting | Shin Jun-ha | Lighting Director |
| Art | Oh Sang-man | Production Design |
| Sound | Jeon Sang-yoon | Original Music Composer |
| Sound | Kim Suk-won | Sound Supervisor |
