Prosthetic penises were used in the rape scenes.
The film tells the story of serial rapist Marcelo Sajen, a man who seemed like a model father and husband and who raped almost a hundred women in the city of Córdoba, Argentina, between 1985 and 2004.
The scenes of sexual violence were filmed in Sarmiento Park, in Cordoba. "The park had been closed. There was a lot of intimacy at the time of the nudity, those who didn't add up went a few meters away. That helps a lot, you have to be careful with these characters, it is not easy. We trained to get in and out of character without hurting ourselves. You have to be careful and the filming itself. That intimacy helps," Sabrina Nuñez said.