I don't believe there are any more spoilers than the title and description of the film.
I agree with some of the critics, the acting was lacking in some areas but the film shows realities of many dead and many survivors. I do think that they did the best they could speeding up the threat in the relationship. Changing Woman is a Navajo origin story-- I think to those who are unfamiliar were put off by this part of the movie because they don't understand what it means for Navajo women. I'm glad the issue of intimate partner violence, especially the occurrence of dismissing the violence against or murder of Native women, is available in this format. Thank you for those who created and sponsored this film.
...I would be curious to know if the most critical reviews were by any but White males.