Watcher
As a serial killer stalks the city, Julia — a young actress who just moved to town with her husband — notices a mysterious stranger watching her from across the street.
Watcher is largely a psychological thriller/suspense about stalking and perceived threat; while it employs fear-driven scenes and some horror imagery, its core identity is not horror-first. Horror elements are meaningful but secondary to thriller/psychological aspects.
Best for viewers looking for a scary, high-tension, atmosphere-heavy, psychological and low-gore horror movie.
Movies with a similar horror experience.