“It Follows” is about a curse passed on through sex instead of witnessing a bloody suicide. As in “Smile”, the curse manifests in people who at first seem normal. They can appear anywhere and from any location, sometimes walking at a slow pace. If they catch you, they will kill you and chase the last one with the curse. Maika Monroe’s performance as Jay cemented the film, making her feel like she was constantly living on the sidelines.
Jay also faces an ethical dilemma. The only way for her to survive is to continue to overcome the mysterious ghosts or spread the curse by having sex with others. As in “Smile”, these creepy characters change shape and can be anyone Jay sees: an elderly woman, a naked man on a rooftop, a tall man appeared out of the darkness. They wore blank, threatening expressions instead of smiles. It’s horrifying to think that a monster could be hiding inside anyone you meet.
Writer and director David Robert Mitchell frames these people from afar, like the scene in “Smile” where Rose opens the curtains and sees someone staring at her from the hospital grounds below. The idea of being watched closely by someone from afar without even realizing it is deeply unsettling. “It Follows” has a more open ending, but it’s also stylish and shares the same fear of paranoia as “Smile”.
https://www.slashfilm.com/1037024/the-two-horror-movies-you-need-to-watch-after-smile/ Two Horror Movies You Need To Watch After Laughing Out Your Belly