Helen Gurley Brown's self-help best-seller was the nominal source for this Hollywood sex romp, directed by Richard Quine, co-scripted by Joseph Heller and David R. Schwartz, and starring Tony Curtis and Natalie Wood. Tony Curtis plays Bob Weston, a writer for a scandal magazine who is working on an article on research psychologist Helen Gurley Brown (Natalie Wood) and her best-selling book Sex and the Single Girl. Bob needs to interview Helen, but she refuses to see him. Bob impersonates one of her neighbors, Frank Broderick (Henry Fonda), as a ruse in order to see her on the pretext of marital counseling. After several meetings, Bob attempts to seduce her, but she resists; then he phones her and claims he's about to commit suicide by jumping off a local pier. Horrified, she rushes out to save him, but the two accidentally fall off the pier together and then head back to Helen's apartment to dry out. Bob plies Helen with martinis. Rip-roaring drunk, Helen confesses her love for Bob. He assures her it's fine, since he's not legally married, but Helen doesn't believe him and asks to meet his wife, Sylvia (Lauren Bacall). This leads to an endless series of complications, capped off by a wild chase to the Los Angeles airport.