The Netflix movie has become a social media sensation.
Some viewers are claiming they can’t even make it all the way to the end of the supernatural horror.
The entire film rests on the shoulders of young Spanish star Sandra, who hasn’t just had an unsettling effect on audiences safe at home.
Even the director and casting director have confessed that she left them “so nervous” when they first saw her they were unable to even film her audition.
Plaza told El Mundo that the young actress immediately had a massive effect the first day they saw her.
He said: “We saw over 8,000 young girls across six months. We saw Sandra on the first day, the very first day and it was something magical.
“The casting director Arantza (Velez) called me that night and she said: ”I am freaked out. I know we have six months but i have just seen a girl on the first day and she made me so nervous. She had such an impact that I couldn’t (record). I need to see her again tomorrow so I can film her, so is so spectacular.’
VERONICA DIRECTOR REVEALS HIS TERRIFYING BELIEF ABOUT THE MOVIE
Plaza added: “So I had incredibly high expectations, but when I saw her for the first time, it had a huge impact on me.
“She is a girl who has something in her gaze which passes through the camera.. you can’t stop looking at her. She also has something which very few people have, which is that you immediately empathise with her and feel connected emotionally with her. When she suffers you suffer, when she smiles, you smile. You easily feel very emotionally linked with her.”
VERONICA IS OUT NOW ON NETFLIX