This is a kind of "open-ended" movie where the viewers are to be cliffhanged at the end, not knowing what the character would do next or what would happen. Well, that's what makes films beautiful (for some) and unsatisfactory (for others).
For me, I think I got stuck in between because I really wanted to know what happened next like [SPOILER ALERT!] did the police get her, or what did the mother feel or do after knowing her husband is dead, or what happened to Maria, is she coming back?
Viewers were left with a cliffhanger for them to decide what ending they'd want to have. For me, I want her to wake up and realize everything is just a dream and then gain at least a little confidence and social life from it. Or I'd want a little distorted ending like, she'd probably commit suicide.
But whatever. THIS IS A GREAT MOVIE, IT HAS A GREAT PLOT, CASTING, AND ACTING. What I disprove is the nudity content, like whut? You don't even have to show that Director. That's not even necessary. But anyways, 9.5/10.