Allison Jones (Bridget Fonda) is a successful software designer working in bustling Manhattan, along with her successful career, she lives in a very trendy apartment and has a handsome boyfriend Sam. But when she finds out that Sam has been cheating on her, she has no option but to start out on her own. Determined not to lose her apartment, she advertises for a roommate. After failed interviews, she finally comes across Hedra Carlson (Jennifer Jason Leigh). At first everything seems to be running smoothly, with the self-centred Allison enjoying Hedra's company and her constant willingness to please. But things start to turn strange when Hedra begins copying Allison, her hair style, the clothes she wears and even the way she acts. When Allison decides to give her ex boyfriend, Sam, another chance and asks him to move in, she asks Hedra to look for new accommodation, unleashing a very weird and psychotic side to her roommate.

Broadway and West 75th Street, Manhattan.

otsoNY Comments: The Ansonia is a building on the Upper West Side of New York City, located at 2109 Broadway, between West 73rd and West 74th Streets. It was originally built as a residential hotel by William Earle Dodge Stokes, the Phelps-Dodge copper heir and shareholder in the Ansonia Clock Company, and it was named for his grandfather, the industrialist Anson Greene Phelps. In 1897, Stokes commissioned French architect Paul Emile Duboy to design the grandest hotel in Manhattan.

otsoNY Comments: When this film was shot, the Ansonia had just been converted to a condominium apartment building with 430 apartments. By 2007, most of the rent-controlled apartment tenants had moved out, and the small apartments were sold to buyers who purchased clusters of small apartments and threw them together to recreate grand apartments.

otsoNY Comments: The Ansonia was appeared in several films including "Three Days of the Condor", the alley behind the hotel was used as a rendezvous for Robert Redford's character, which became an ambush for a failed assassination. In the film "The Sunshine Boys" it was Walter Matthau's character apartment building, and in 2001 the apartment building for Michael Douglas character in "Don's Say a Word.". It was also featured in the film "My Super Ex-Girlfriend" starring Uma Thurman and Luke Wilson, and in 2007, in the film "Perfect Stranger", Halle Berry plays a news reporter who lived in a professionally decorated $4-million condo in the lavish Ansonia building on the Upper West Side.

Allison's Apartment, 2109 Broadway (btw West 73rd and 74th Streets) Manhattan.

Spring Street and West Broadway, Manhattan.

West 73rd Street (btw Broadway and West End Avenue) Manhattan.

otsoNY Comments: This book shop is no longer open. Special thanks to Bob Egan for finding this location.

Rizzoli Bookshop, 452 West Broadway (btw Prince Street and W Houston Street) Manhattan.

otsoNY Comments: Special thanks to Naomi Thompson for finding this location, and correctly identifying the fact that it also appeared in the film, When Harry Met Sally as Billy Crystal's character's apartment.

Apartment, 57 East 11th Street (btw University Place & Broadway) Manhattan.

West 74th Street and Broadway, Manhattan.

Hair Salon, 433 West Broadway (btw Prince Street and Spring Street) Manhattan.

West 14th Street (btw Hudson Street and 9th Avenue) Manhattan.

otsoNY Comments: The Hellfire Club was a BDSM nightclub in New York City's Meatpacking District during the late 1980s and early 90s.

The Hellfire Club, 675 Hudson Street (btw West 13th and 14th Streets) Manhattan.