The man holding a knife to Gambir in front of herosase building is played by Timo Tjahjanto, half of the mo brothers (the other being Kimo Stamboel) who directed Macabre (also known as Rumah Dara), another Indonesia's critically aclaimed slasher movie.
There is a scene showing an intersection sign of Jl.Modus and Jl.Anomali, which refers to Joko Anwar next movie, Modus Anomali (2012)
Won Special Jury Prize, 11th Jakarta International Film Festival, 2009.
Adapted from a novel with the same name by Sekar Ayu Asmara
The major differences with the source novel is this movie focus solely on the naration of Gambir, while the background details of the mysterious boy and the reporter is left untouched