When fifteen-year-old June Drew overhears the mother of a high school classmate tell another woman that June's widower father Christopher is leading a lonely life because of his obsessive dedication to his daughter, June decides to find her father a wife. Shortly after June makes her pledge, Valerie Broughton, a flashy pulp novelist who has moved into a nearby house, drops by the Drew home to see Christopher, who is a publisher. June is repelled by the phony, pushy writer, but after she and her best friend, Mildred Jackson, discover a copy of Valerie's bestseller, which she has inscribed to Christopher with the words "Our Story," she concludes that Christopher must be the romantically frustrated man in the novel, and Valerie, the woman. Determined to undo the wrong she has apparently done to her father, June puts aside her dislike of Valerie and works to bring the two adults together, unaware that her father is actually attracted to Eleanor Emerson, her English teacher. To clear the way to romance, June leaves with Mildred on a camping trip and encourages Christopher to socialize. While she is gone, Christopher dates Eleanor and, just before leaving on a business trip, proposes to her. When June returns, she visits Valerie, who tells her that Christopher is seriously involved with Eleanor. Distressed, June confronts Eleanor and tells her without explanation that she cannot become her stepmother. She then rushes to tell Valerie about Eleanor but is shocked to find another man, the real man from the novel, in Valerie's house. Humiliated and depressed, June collapses in her bed, while Eleanor tells Christopher that the wedding is off because of June's display of hostility. Confused by June's actions, Christopher confides in Dr. Barnes, the family physician, who advises him to postpone his marriage plans until June has adjusted. Bolstered by her father's understanding, June confesses what she has done and reunites him with Eleanor.