Sliver (1993)

Young publishing executive Carly (Stone) takes an apartment in an exclusive "sliver" building in New York, only to learn that the previous tenant, who bore a great resemblance to Carly, died in a mysterious fall from the apartment balcony. When other tenants of the building begin to die likewise mysteriously, Carly begins to suspect that a killer may be inhabiting the building and that it may be either Zeke (Baldwin), the voyeuristic building owner with whom she's become involved romantically, or Jack (Berenger), a mystery writer with a suspicious quality.