Keith and The Girl Forums - Mini Silent Trailers

I was in the shower this morning thinking of a movie I haven't seen since I first saw it in theaters years ago.

This is what I know.

It was released after 2011 before 2020, it's about a woman who is either a girlfriend or she marries into a wealthy family. And the night of her wedding or party or whatever, the family decides they need to hunt her down and kill her because the source of their wealth is from a deal with the devil where they sacrifice a woman and it just so happens that they need to sacrifice someone now or else they lose everything. It ends with her surviving, on the front steps, covered in blood wearing a fancy dress.

I can't remember the name of the movie, anyone know?