A woman discovers the downside of getting to know your neighbors in this suspense thriller. Jane Emelin (Juliette Lewis) is a young interior decorator who has inherited an apartment in New York City from a relative who has passed on. While she loves the building and the price is right, she discovers that the apartment below hers is rented out by a dangerous eccentric who soon makes her life a living hell. The 4th Floor also features William Hurt, Shelley Duvall, and Austin Pendleton.

~ Mark Deming, All Movie Guide