The Outer Limits (1995)

Mona Bailey (Jane Adams) lives with her husband Ned (Peter Outerbridge) in the Clackson Arms, an old apartment building that is being taken over, apartment by apartment, by a mysterious developer called KM Inc. Mona is a hypochondriac, an able-bodied woman who rides a wheelchair, who treats the Physician's Desk Reference like a personal bible and who has not left the building in six months for fear of catching a disease. One day she backs her wheelchair into an electrical box and gets a shock, leaving her hearing strange voices and seeing bodies dropping out of windows...