In 1939, eight strangers are invited to Soldier Island, a secluded estate off the Devon coast, by the mysterious U.N. Owen. Upon arrival, they are greeted by two servants, Thomas and Ethel Rogers, who reveal their employers are delayed. The guests—a disparate group including a retired judge, a cynical mercenary, a pious spinster, and a disgraced doctor—soon discover they all share a dark secret: each has committed an unsolved murder for which they escaped legal justice.The atmosphere turns lethal during their first dinner when a gramophone recording broadcasts their crimes to the room. Shortly after, young Anthony Marston dies from cyanide poisoning, mirroring the first verse of a morbid nursery rhyme hanging in every room. As the group panics, they realize the rhyme dictates the order of their impending executions. When Mrs. Rogers is found dead the next morning, the survivors conclude that the killer is among them. Paranoia consumes the island; trust dissolves as they search for the hidden assailant, only to find themselves trapped by a relentless storm.As the body count rises, the remaining guests succumb to psychological unraveling. The judge, Lawrence Wargrave, orchestrates
the investigation, yet his own authority crumbles as he becomes a primary suspect. The characters’ motivations shift from self-preservation to desperate, violent finger-pointing. Vera Claythorne, a governess haunted by the drowning of her charge, struggles to maintain her sanity while Captain Philip Lombard relies on his cold, predatory instincts to survive.The tension culminates in a claustrophobic standoff. One by one, the guests succumb to traps, poison, or blunt force, their deaths perfectly matching the sinister poem. As the final pair dwindles, the true nature of their host’s sadistic game is revealed: it is not merely a slaughter, but a self-righteous execution of the guilty. In a final, chilling twist, the mastermind emerges, having faked his own demise to witness the absolute moral
disintegration of his victims. The series concludes with the island silent, littered with corpses, leaving the authorities to find a collection of bodies and a diary that offers no solace, only the grim confirmation that justice was served by a madman.