A salesgirl with plenty of "it" (sex appeal) pursues a handsome playboy.
Shopgirl Betty Lou has designs on Cyrus Waltham, the handsome owner of the department store where she works. Waltham, though, doesn't even know Betty Lou is around. In hopes of attracting Waltham's attention, she accepts a date with his best friend, Monty, under the condition that they dine at the Ritz, where Waltham also has a dinner date that evening. Her plan works and in no time at all she and Waltham are contemplating marriage. The romance cools when a newspaper reporter mistakenly writes a story depicting Betty Lou as an unwed mother.
At Waltham's department store, lowly salesgirl Betty Lou swoons over Cyrus Waltham Jr., handsome playboy son of the owner. Betty has "it" (sex appeal) in abundance, but it's an uphill battle getting Cyrus to notice. Finally, her smouldering glances begin to take effect. Of course, misunderstandings intervene. Can a woman who loves Coney Island hot dogs and a man who dines at the Ritz ever meet halfway?
- Spunky shop girl Betty Lou Spence (Clara Bow) has a crush on her handsome employer, Cyrus Waltham, Jr. (Antonio Moreno), the new manager of and heir to the "world's largest store". However, they belong to different social classes and he is already romantically linked to blonde socialite Adela Van Norman (Jacqueline Gadsden). But Cyrus's silly friend Monty (William Austin) notices Betty, and she uses him to get closer to Cyrus.
When Betty finally gets Cyrus's attention, she convinces him to take her on a date to Coney Island, where he is introduced to the proletarian pleasures of roller coasters and hot dogs and has a wonderful time. At the end of the evening he tries to kiss her. She slaps his face and hurries out of his car and into her flat, but then peeks out her window at him as he is leaving.
The next day, meddling welfare workers are trying to take away the baby of Betty's sickly roommate Molly (Priscilla Bonner). To protect her friend, Betty bravely claims that the baby is in fact hers. Unfortunately, this is overheard by Monty, who tells Cyrus. Although he is in love with her, Cyrus offers her an "arrangement" that includes everything but marriage. Shocked and humiliated, Betty Lou refuses, quits her job, and resolves to forget Cyrus. When she learns from Monty about Cyrus's misunderstanding, she fumes and vows to teach her former beau a lesson.
When Cyrus hosts a yachting excursion, Betty Lou makes Monty take her along, masquerading as "Miss Van Cortland". Cyrus at first wants to remove her from the ship, but he cannot long resist Betty Lou's it factor; he eventually corners her and proposes marriage, but she gets him back, by telling him that she'd "...rather marry his office boy," which accomplishes her goal, but breaks her heart. He then learns the truth about the baby and leaves Monty at the yacht's helm to find her. Monty crashes the yacht into a fishing boat, tossing both Betty Lou and Adela into the water. Betty Lou saves Adela, punching her in the face when she panics and threatens to drown them both. At the end of the film, she and Cyrus reconcile on the anchor of the yacht, with the first two letters of the ship's name, Itola, between them. Monty and Adela are upset at losing their friends, but it is implied they pursue a relationship with each other as the film ends.