A wealthy businessman is executed in the middle of a crowded dining room at the Savoy Hotel, forcing Martin Beck to navigate a complex web of political and social motives. Beck must identify the elusive assassin while managing the mounting pressure from his superiors and the public. The investigation requires him to piece together fragmented witness accounts and trace the victim's history to uncover a hidden vendetta. The narrative utilizes a clinical, third-person perspective that emphasizes the methodical nature of police work within the Swedish social landscape.

This work is widely regarded as a foundational text in the development of the Scandinavian noir genre. Critics frequently highlight the authors' ability to blend a traditional police procedural with sharp, critical observations about the welfare state. The narrative style is noted for its restraint, avoiding sensationalism in favor of a grounded, realistic depiction of law enforcement. Readers often appreciate the series for its consistent tone and the gradual evolution of the protagonist, Martin Beck, across the novels. The book remains a standard-bearer for those interested in the origins of modern European crime fiction.