The movie is based on the suspense short film nominated for the Golden Méliès to the Best European Fantastic Short Film, winner of more than 30 awards and screened by more than 200 film festivals. It was defined by the critics as "a cult short film".

本片改编自2017年发生在危地马拉的真实事件，当时一起孤儿院大火导致41名孤儿意外去世，后媒体曝光这些孤儿被长期虐待，她们在事发前一天曾试图出逃最新福利片