Roberto Lafarina met director Christian H. Paz the day he shot his first scene. In a couple of hours he learned his lines and rehearsed his part. Them he began to shoot the first of his two days working on this film.
At the beginning of the casting process, Marcelo Mendez was considered for the role of David. Eventually he got the part of Javier, David's nemesis.
The whole script was written in one night, during a shift of director Christian H. Paz as a night watchman.
This film includes a character who works as a night watchman. By the time this film was written and made, director Christian H. Paz was working as a real life night watchman.
At one point, Christian H. Paz was considered to play the role of "Turco".