it is a foreign language thriller - I can't remember, French? Spanish? - told in sections that overlap - the first scene of one section or chapter is the final scene of the subsequent section, a bit mindbending like Memento. Each section has a new main character and as their part ends, their story will intersect with the other characters/sections. It has a creepy moustached serial killer, a litte intense man, who scarily attacks a woman's yellow car in a remote part of a forest. The car ends up against a tree down a hill. Her boyfriend is the focus of another section of the movie.
Her race plays a role in the story. She is played by a black actress.
It was fascinating but truly scary.....I recalled it as I watched Only The Animals, which has a similar structure, but can't RECALL the title...