Four friends pledge to commit suicide together but while standing on the ledge, only one of them actually jumps. Her ghost begins to haunt the remaining friends until the pledge is fulfilled.
| Directing | Lee Jong-yong | Director |
| Writing | Lee Jong-yong | Screenplay |
| Editing | Kim Jae-beom | Editor |
| Camera | Kang Seung-gi | Director of Photography |
| Editing | Kim Sang-bum | Editor |
| Production | Lee Se-young | Producer |
| Writing | Lee Se-young | Adaptation |
| Writing | Lee Yoon-hyung | Adaptation |
| Writing | Hwang Joo-yeon | Adaptation |
| Production | Lee Choon-yun | Executive Producer |
| Art | Jeon In-han | Production Design |
| Sound | Park Deok-soo | Sound Supervisor |
