Ten strangers, apparently with little in common, are lured to a mansion on an island off the coast of Devon by the mysterious U.N. Owen. After dinner, a record begins to play, and an unknown voice accuses each person of hiding a guilty secret. That evening, former reckless driver Tony Marston is murdered by a deadly dose of cyanide. The tension escalates as the survivors realise the killer is not only among them but is preparing to strike again... and again.
Ten strangers, apparently with little in common, are lured to a mansion on an island off the coast of Devon by the mysterious U.N. Owen. After dinner, a record begins to play, and an unknown voice accuses each person of hiding a guilty secret. That evening, former reckless driver Tony Marston is murdered by a deadly dose of cyanide. The tension escalates as the survivors realise the killer is not only among them but is preparing to strike again... and again.