A young woman's desperate search for a career in the theater culminates in a high-stakes murder during the premiere of a new production. Martyn Tarne, a newcomer from New Zealand, secures a position as a dresser at the Vulcan Theatre, only to find herself caught in the orbit of a lethal crime. As the tension of the opening night performance mounts, the narrative shifts from the mundane struggles of an aspiring actress to the cold reality of a homicide investigation. The story follows the classic whodunit structure, relying on the keen observation of the protagonist and the eventual intervention of an investigator to untangle the web of theatrical rivalries and hidden motives.

This novel is widely regarded as a quintessential example of the Golden Age detective tradition, showcasing the author's deep familiarity with the theatrical world. Readers often note the precision with which the backstage environment is rendered, providing a vivid backdrop for the central mystery. The narrative is frequently praised for its balance between the intricate mechanics of the crime and the psychological depth of the suspects involved. As a staple of the genre, the work continues to be analyzed for its clever subversion of theatrical tropes and its disciplined adherence to the rules of the classic whodunit.