Aurore Gagnon was a real little girl who was murdered by her stepmother. She died in 1920 , at age of ten in Fortierville , Québec, Canada. The house where she lived and died is still there and the original window of her room has never been changed.
This film is based on the Dark Web mystery box by a youtuber named Casey Nolan from Mindseed TV.
When they were in the first room there was a woman in the doorway of the next room, to the right. Later, a ghost girl appears very briefly in a background doorway when they are talking about being a "cult person".
When Lena and Kevin are sitting on the couch smoking a joint, if you pay attention to the cross above their heads it moves to the right of Lena.