When a ship carrying Sir John Appleby is wrecked in the Pacific, he finds himself stranded on a remote island with a group of eccentric survivors who soon become suspects in a series of bizarre crimes. Appleby must navigate the social tensions and psychological instability of his fellow castaways while attempting to maintain order in an environment devoid of traditional law enforcement. The narrative follows his methodical approach to deduction, utilizing his sharp intellect to parse through the conflicting testimonies of the survivors. The setting acts as a claustrophobic stage, forcing the characters into proximity and heightening the stakes of every interaction. The story is presented through a third-person perspective that emphasizes Appleby's internal analytical process.

Readers frequently highlight the author's sophisticated prose style and his ability to infuse traditional detective tropes with a sense of surrealism. Discussion often centers on the unique atmosphere of the island, which serves as a backdrop for the protagonist's intellectual exercises. Critics note that the pacing is slower than contemporary thrillers, favoring character study and verbal sparring over rapid plot progression. Many enthusiasts of the genre appreciate the balance between the logical puzzle and the eccentric personalities of the cast. The work is often cited as a distinct entry in the detective canon due to its unconventional setting and the author's penchant for dry, academic humor.