The film centers on Dr. Rose Cotter (Sosie Bacon), a psychologist whose life is upended when she observes a disturbing suicide within the hospital where she works. Following this traumatic event, unsettling occurrences begin to plague her own existence. Her romantic partnership falters, and she seems increasingly disconnected from reality. The narrative raises questions about what’s happening to her and whether she's destined for a similar end. The film shares thematic similarities with the "Azazel" theory, and director Parker Finn successfully cultivates an atmosphere of mystery and suspense as the plot unfolds. The sound design—including both effects and music—effectively conveys the malevolent presence at play, contributing significantly to the overall tone. However, I must say that the acting was a significant disappointment. While Bacon initially commanded attention, she ultimately lacked the strength needed to carry the film, which largely relies on her performance. Her ex-boyfriend/police officer, Joel (Kyle Gallner), provides some support as a skeptic of the unfolding events, while her boyfriend Trevor (Jessie T. Usher) and former psychiatrist (Robin Weigert) meet unfortunate ends. Unfortunately, these characters fail to add substantial depth to what is essentially a rather shallow horror story. Though there are moments intended to startle, they become less effective because the lead actress doesn’t fully exploit the building tension. I believe that if the film had focused less on Rose's character development and maintained a quicker pace, it might have lessened my focus on her shortcomings; however, the photography—with its drawn-out visuals—only served to diminish the impact for me. I was truly let down, and eventually felt compelled to rewatch "Fallen" (1998) instead.

Source on TMDB