October 26, 1979, a presidential assassination shakes the nation. Taking on the defense of Park Tae-joo, the secretary involved in the presidential assassination, lawyer Jung In-hoo enters what would be South Korea's most notorious political trial. Despite Park Tae-joo facing a predetermined sentence due to his military status, Jung In-hoo fights tirelessly to ensure a fair trial, enraged by the trial's unfair proceedings.
Unfortunately the movie Land of Happiness is not yet available on HBO Max.
| Writing | Heo Jun-seok | Writer |
| Sound | Kim Tae-seong | Original Music Composer |
| Writing | Choo Chang-min | Adaptation |
| Production | Lee Jun-tack | Producer |
| Sound | Lee Sung-june | Sound Recordist |
| Production | Kim Woo-taek | Executive Producer |
| Camera | Hong Jae-sik | Director of Photography |
| Lighting | Kim Jae-keun | Lighting Director |
| Editing | Heo Sun-mi | Editor |
| Production | Lee Yong-nam | Associate Producer |
| Art | Kim Bo-mook | Production Design |
| Visual Effects | Yang Il-seok | Visual Effects |
| Visual Effects | Jung Do-ahn | Special Effects Supervisor |
| Costume & Make-Up | Park Yea-ri | Makeup & Hair |
| Costume & Make-Up | Ryu Hyeon-min | Costume Design |
| Production | Jang Jin-seung | Producer |
| Sound | Lee Sang-jun | Sound Supervisor |
| Directing | Choo Chang-min | Director |
