Cynthia Meraulton fears her disinherited nephews will commit murder to secure their inheritance, forcing her to seek protection for her stepfather. Slim Callaghan, a private investigator, accepts the case to navigate the volatile family dynamics and prevent a potential homicide. The narrative follows Callaghan as he probes the motives of the four nephews, who stand to lose everything if the stepfather alters his will. The story operates within the conventions of the hardboiled detective genre, utilizing a fast-paced, third-person perspective that emphasizes sharp dialogue and cynical observation. Callaghan must contend with the physical threat posed by the desperate heirs while deciphering the complex legal and personal stakes surrounding the Meraulton estate.

Readers frequently highlight the brisk pacing and the cynical wit that defines the Slim Callaghan series. Discussion often centers on the effectiveness of the plot twists and the author's ability to maintain tension throughout the investigation. Critics note that the characterization of the antagonist nephews provides a compelling contrast to the cool, calculated demeanor of the protagonist. Many fans of classic crime fiction appreciate the straightforward narrative structure and the authentic period atmosphere that permeates the work.