Phyllis Ladd loses her mother at twelve, a tragedy that forges an intense, singular bond with her wealthy railroad-president father, Robert T. R. Ladd. Educated by her father's amiably cynical philosophy rather than standard governance, she grows into a brilliant, high-spirited young woman.
When her ambitious aunt Sarah whisks her away to Washington, Phyllis plunges into the high-stakes marriage market, where wealthy suitors like the austerely proper J. Whitlock Pastor and the aristocratic German diplomat Baron von Piller present themselves. These engagements ultimately collapse as Phyllis recoils from the artificiality of elite matchmaking, realizing she cannot marry without genuine emotional resonance. Returning home, she encounters a compelling theatrical world that awakens an intense, overwhelming infatuation, culminating in a clandestine romance with Cyril Adair, a charismatic actor with a turbulent past. Despite her father's fierce disapproval and the painful discovery of Adair's flawed nature, Phyllis asserts her independence, choosing to face hardship rather than surrender her right to love authentically.