Single White Female is a 1992 thriller based on John Lutz's novel SWF Seeks Same. The movie stars Bridget Fonda, Jennifer Jason Leigh & Steven Weber and is directed by Barbet Schroeder, who also directed Reversal of Fortune.
Alison "Allie" Jones (Bridget Fonda) is a software designer in New York City. While her professional star is on the rise -- she has created a computer software package that will revolutionize the fashion world -- her personal life is a mess.
Allie banishes her fiance Sam Rawson (Steven Weber) from her rent-controlled apartment on Manhattan's Upper West Side, after discovering that he slept with his ex-wife. Allie finds platonic comfort in her homosexual neighbor Graham Knox (Peter Friedman), an aspiring actor with a sensitive shoulder to lean on.