And Then There Were None by Agatha Christie

Ten strangers are invited to a house on a remote island off the Devonshire coast. None of them know each other and none have ever met their host. Each has been asked there for a specific reason. And each has a closely guarded secret in their past. When their host fails to arrive the ten strangers become suspicious and uneasy. And then they begin to die, one by one, each murdered in a grotesque parody of an old nursery rhyme... Agatha Christie’s most baffling mystery. Can you spot whodunit?