In August 1939, eight strangers are invited, by various tactics and misrepresentations, to Soldier Island, a small isolated rock off the Devon coast. Cut off from the mainland, with their ostensible hosts, "Mr. and Mrs. U.N. Owen", mysteriously absent, they are each accused of a terrible crime, as are the two married servants. When two of the ten die mysteriously before morning, the accused suddenly realise there may be a murderer among them. Based on a novel by Agatha Christie.
Shows set in a long gone period of time. Even if that time happens to be the 80's. Basically everything not taking place in the present of the time of filming.