Neighbor(2009)

Fear your neighbor.

Neighbor is a psychological thriller about a mysterious young woman who arrives in an upscale suburban community and begins a calculated campaign of terror. She breaks into homes, torments residents, and methodically destabilizes the neighborhood from within. What starts as isolated incidents escalates into something far more sinister as the townspeople slowly grasp that they're not dealing with an ordinary intruder. The film explores how a single outsider can unravel the false security of a privileged enclave, turning neighbors against each other as paranoia spreads. Dark and unsettling, Neighbor examines the fragility of suburban comfort when confronted by genuine menace.