The film was shot in 24 days. 22 days in 2019 and 2 days in 2020, a year later.
The character Sol, appears in all the scenes of the film except the first one. This was thought by the director Sebastian Perillo to always maintain her point of view.
The principal photography was shot in September and October 2019, but due to the Covid-19 pandemic the scene where the dog was thrown the net and the final scene were filmed in November 2020.
Although Sol in the film is 17 years old, actress Luciana Grasso was 26 years old when she played the role.
Originally the film was going to be titled Perro Demonio (Demon Dog), but director Sebastian Perillo chose to prioritize the conflict between Sol and Gonzalo, and present the dog more heroic than demonic, so it was decided to change the title.