The movie is based on a real case that took place in Europe between 2008-2010.
The title "Darius" is a Romanian name that resembles the name of the real person whose case is the basis of the film. Same procedure was used in the script for other characters whose name somehow resembles the ones of the real persons they were based on.
The research for the movie started in the summer of 2017. The preparation of the actors took place between February and June 2018, after the completion of a 70 page script.
Filming took place between April and August 2018, during the rehearsal process. The beginning and the ending of the movie were the first scenes filmed. They were filmed in the spring, because the director wanted the beaches used as the location to be empty.