Ratter (2015)

Plot

Emma, a vibrant graduate student, embarks on a fresh chapter in New York City, constantly tethered to her phone and laptop. Unbeknownst to her, a sinister presence lurks in the digital shadows, meticulously tracking her every action. Initially drawn to the thrill of watching her life unfold online, this hacker’s obsession soon spirals into a chilling nightmare. As Emma's privacy disintegrates, the stakes rise, leading her into a terrifying confrontation with the unseen menace that has invaded her world. Tension mounts as she struggles to reclaim her life from this invasive force.