This film was Maja Ericson's debut as a screenwriter.
Enes Crnalic who plays Admir, also composed one of the scores for the soundtrack.
Actors Mimmi Kandler and Fredrik Lehmann used the famous Chubbuck technique in order to prepare for their roles as cold-blooded Nazis.
Sofia Joelson who plays Linnéa is actually the real-life daughter of actress Mimmi Kandler who plays the film's antagonist Helen. However, they didn't appear as mother and daughter in this film.
Several members of the cast and crew conducted research on Swedish right-wing extremist websites prior to the filming commenced in order to get a better understanding of the subject that they dealt with.