I wouldn’t really call this a horror movie - more of a supernatural slow burn.
The plot of the movie is intriguing, as if someone asked the question “What if you filmed a movie from the ghost’s perspective?” And what the film lacked in jump scares, it made up for in great performances by all the leads (especially Lucy Liu who plays an incredibly unlikable character).
You might end the movie feeling a little unfulfilled but it was still a fine watch nonetheless.