Sliver (1993)

In a daring attempt to start afresh after a dead-end marriage, Carly Norris, a successful book editor, moves into her elegant new apartment on the twentieth floor of a high-tech Manhattan apartment building. Unbeknownst to her, the luxurious "sliver" building comes with a terrible history of unsolved grisly murders, Carly catches the eye of both a burned-out crime novelist, Jack Landsford, and a shyly charming video-game designer, Zeke Hawkins. As a mysterious voyeur watches the tenants' every move, yet another female neighbor dies. Could Norris be next?