Hercule Poirot faces a series of five distinct, perplexing criminal enigmas that demand the full application of his deductive intellect. The protagonist, a retired Belgian detective, navigates these varied scenarios—ranging from poisoned puddings to suspicious suicides—by observing the psychological inconsistencies of those around him. Opposing him are clever murderers and complex social deceptions that threaten to obscure the truth. The narrative framework utilizes a collection of short stories, each presenting a self-contained puzzle that highlights Poirot's methodical approach to investigation.

This collection is widely regarded as a quintessential example of Agatha Christie's mastery of the short-form mystery. Readers often praise the book for its ability to deliver satisfying, self-contained puzzles that showcase Poirot's unique personality and investigative style. The stories are frequently noted for their clever plotting and the classic, cozy atmosphere that defines much of Christie's mid-career work. While some critics argue that the shorter format lacks the depth of her full-length novels, the consensus remains that these tales provide an efficient and enjoyable experience for fans of the genre. The inclusion of the title story, which features a festive setting, adds a distinct charm that resonates with long-time followers of the series.