Gwendolyn Armitage, the descendant of an English aristocrat, begins vamping men at the age of four when, with her sweetest smile, she induces a fireman to carry her from the rubble of the San Francisco earthquake to new lodgings. After business college, Gwen comes to New York with a letter of introduction to the office of Janmes Crowninshield to get a job. When she finds out that Crowninshield does not like people using connections, she tells him that her name is Nellie Jones and lands a job as a stenographer when Crowninshield's underlings fall for her smiles. After Gwen's smiles disrupt three departments, Crowinshield, who believes that sentiment should not mix with business, takes her as his own secretary. As they start to go out on Saturday nights, ostensibly to investigate the request of a shimmy dancer for insurance for her shoulders, Crowinshield unconsciously falls for Gwen. After a series of complications, Gwen accepts Crowninshield's dictated proposal and they marry.