For their fourth week wedding anniversary, Katie decides to earn some money for an expensive gift for Robbie by taking a one week job as a tea-room waitress. Robbie lunches at the tea-room and finds Katie, who has taken over as a last-minute replacement for the cigarette girl, in an abbreviated costume.

Attractive lady engineer Eileen Talbot is assigned to help Steve Douglas on a rush project in his office, and she applies her many talents to assure romantic, as well as technical success. Only level headed Katie recognizes her as a manipulating female long before the gullible male Douglases do.