What really scares me about M. Night Shyamalan’s Split (2016) is the opening: A father, his teenage daughter Claire (Haley Lu Richardson), and her two “friends” (we’ll get to this) Marcia (Jessica Sula) and Casey (Anya Taylor-Joy) return to their car after his daughter’s birthday party. The girls climb into Claire’s father’s luxury car first, while he finishes putting left-overs in the trunk. The slightly wide-angle shot shifts to point-of-view.
The next scene unhurriedly reveals a stranger (James McAvoy) as he puts on a painter’s mask and, with callous efficiency, chloroforms Marcia and Claire, right before seeing Casey and subsequently rendering her unconscious as well.