It is about the journey of a young girl into psychopathy and serial killing after having a traumatic childhood experience.
There are no jump-scares whatsoever. The whole film is rather subtle and relies on the viewers drawing their own conclusions.
However, Robin doesn’t understand the deeper meaning of the title. And is her father aware of the villain locked up in the barn and that he later is blinded and muted? And why doesn’t he call the police? Does she kill him?
Anyway – if you enjoy experimental films like The Lighthouse you could give this a go.