Thoroughbreds
Really intense, fascinating character study that occurs mostly in a lushly decorated and intensely opulent manor (which is used to great comedic effect in one scene featuring Yelchin). The two lead girls are given the most narrative attention, and their arcs are rich and obviously reminiscent of the same kind of questions raised by films like American Psycho and Heathers--but the focus on female friendship and the intense obsession that teenage friendships can foster was a deft and compelling touch.
The visuals were amazing, the acting stellar (and yet again I am reminded of how great a loss Yelchin was to the world), and the soundtrack caught my attention and really supplemented the movie beautifully. I was so thrilled with this film.