Sliver — Ira Levin

A chilling psychological thriller that explores the menacing evil behind the glittering facades of Manhattan's skyscrapers.

Kay Norris, a successful and lovely book editor, moves into the posh Carnegie Hill district of Manhattan, into an apartment in a slender high-rise. A man watches her. He watches her unpack, watches her make her bed. He owns the building: a shocking secret is concealed within its brick and concrete. 

Sliver is a sinuous erotic thriller, a hypnotic story of obsession, suspense, and stunning surprises. It is a novel about the ultimate power, and the temptations the use of that power brings.