Lisa Drummond, plain and self-conscious beside her glamorous step-sister, navigates longing and wounded pride when the man she loves declares affection for the sister. Parallel threads follow a charismatic figure entangled with a theatrical woman named Maxine, whose past and a set of diamonds draw Ivor into travel, secrecy, and risky bargains. Social maneuvering, midnight drives, staged performances, and clandestine errands propel tensions among the three women and Ivor, leading to revelations and a decisive confrontation that tests loyalties, exposes motives, and forces each character to choose between reputation, love, and self-respect.