A father goes all out to clear his daughter from any wrong doing in the murder of his fiancée. When all evidence points to her, he takes matters into to his own hands to save his daughter and outwit the judiciary system.
Is Heart Blackened on Netflix? Yes! The movie Heart Blackened is now on Netflix in the countries listed below.
| Crew | Lee Sang-ha | Stunts |
| Writing | Hong Yong-ho | Adaptation |
| Crew | Lim Wang-sub | Stunts |
| Writing | Lee Yoon-ho | Storyboard |
| Visual Effects | Moon Sung-oh | Animation Supervisor |
| Lighting | Hong Seung-chul | Lighting Director |
| Sound | Jung Jin-wook | Production Sound Mixer |
| Directing | Jung Ji-woo | Director |
| Sound | Kim Mi-mi | Boom Operator |
| Directing | Lee Eun-jung | Assistant Director |
| Costume & Make-Up | Heo Jin | Costumer |
| Costume & Make-Up | Yoon Na-yeon | Costumer |
| Editing | Wang Sung-ik | Editor |
| Writing | Jung Ji-woo | Writer |
| Camera | Jeong Kyung-hwa | Still Photographer |
| Camera | Ji Sung-yong | Key Grip |
| Writing | Lee Chung-hyun | Adaptation |
| Sound | Kim Suk-won | Sound Supervisor |
| Production | Syd Lim | Producer |
| Production | Kim Jeong-bok | Line Producer |
| Sound | Yeon Ri-mok | Original Music Composer |
| Camera | Kim Tae-kyeong | Director of Photography |
| Art | Lee Ha-jun | Production Design |
| Costume & Make-Up | Choi Se-yeon | Costume Design |
| Costume & Make-Up | Song Jong-hee | Makeup & Hair |
| Costume & Make-Up | Kang Dong-yul | Costume Design |
| Art | Oh You-jin | Props |
| Art | Mo So-ra | Art Direction |
| Editing | Kevin Kang | Digital Intermediate |
| Production | Park Jun | Producer |
| Crew | Park Young-sik | Martial Arts Choreographer |
| Visual Effects | Park Choul-yong | Special Effects Supervisor |
