Paranormal Activity (2007)

After moving into a suburban home, a couple becomes increasingly disturbed by a nightly demonic presence. Micah buys a video camera to capture the paranormal activity, but his reluctance to seek help from a demonologist leads to more arguments. Strange phenomena occur, with objects moving on their own and Katie displaying strange behavior at night. As the haunting escalates, Katie is forcibly dragged by an invisible force and is left with a gruesome bite mark. The couple decides to go to a hotel, but Katie insists on returning home, hinting at a demonic presence within her. In the final night, Katie brutally kills Micah, and her whereabouts remain unknown.