Here's a breakdown of the plot:
The Setting: The story takes place on Soldier Island, a remote and isolated island off the coast of Devon, England.
The Characters: Ten strangers are invited to the island by an anonymous host, each with a past they'd rather forget:
* Anthony Marston: A reckless playboy with a history of causing death.
* Emily Brent: A devout, judgmental woman who harbors a secret about a young woman's death.
* Philip Lombard: A former soldier with a ruthless past, known for his involvement in a murder in Africa.
* General MacArthur: A retired military man with a dark secret about the death of his wife.
* Vera Claythorne: A former governess with a connection to a child's death.
* Dr. Armstrong: A physician who seems to be a kind and gentle man but has a hidden past.
* William Blore: A retired police officer with a history of framing an innocent man.
* John Macarthur: A former butler who has a connection to the death of his employers.
* Louise Bourget: A secretary who has a connection to the death of her employer.
* Rogers: The island's caretaker, who is surprisingly absent during the killings.
The Murders: As the guests arrive on the island, a gramophone record plays the "Ten Little Indians" rhyme, and the guests are accused of murder. They start to die off, each death mirroring a line from the rhyme.
The Mystery: The murders are carefully staged, each with a unique method and a connection to the victim's past. The guests begin to suspect each other and try to unravel the mystery behind the killings.
The Climax: The remaining survivors eventually discover that the anonymous host was actually one of them, a vengeful individual seeking retribution for past wrongs. The host, having murdered everyone else, commits suicide to ensure the truth is buried.
The Themes: "And Then There Were None" explores themes of guilt, justice, punishment, and the consequences of past actions. It also highlights the fragility of human life and the darker side of human nature.
The Twist: The identity of the killer and the motive behind the murders are shocking and unexpected, adding to the suspense and intrigue of the novel.