Sara, Airin, Rachel, and Amara were accidentally brought together because of the death of Alex, their ex-boyfriend. They also received a letter from Alex after Alex died, and one of Alex's killers was among them.
| Production | Fransen Susanto | Executive Producer |
| Production | Andreas Sullivan | Co-Producer |
| Production | Melia Indriati | Producer |
| Sound | Edward Fernandez | Music Director |
| Costume & Make-Up | Erwin Wijaya | Wardrobe Designer |
| Editing | Yoga Krispratama | Editor |
| Sound | Hadrianus Eko | Sound Designer |
| Production | Ryan Kusuma | Associate Producer |
| Production | Jackson Lo | Associate Producer |
| Production | Rusmanto Praditia | Associate Producer |
| Art | Hanny R. Saputra | Art Direction |
| Directing | Hanny R. Saputra | Director |
| Production | Raffi Ahmad | Executive Producer |
| Production | Anneke S. Souhoka | Line Producer |
| Costume & Make-Up | Erwin Wijaya | Makeup Artist |
| Writing | Talitha Tan | Writer |
| Writing | Demas Garin | Writer |
| Camera | MH Suprayogi | Director of Photography |
| Sound | Nagra S. Dhonowijoyo | Sound Recordist |