Dermot West is in love with Claire, the wife of his best friend, Jack Trent. After visiting them one night he has a premonition, what he terms 'the red signal', that there is danger in the air, that death walks abroad and there is nothing that he can do about it. When his uncle is subsequently murdered, Dermot is the chief suspect.
This ten episode program was based on ten short stories written by Agatha Christie but with wide-ranging themes. Some were romances, some had supernatural themes and a couple were adventures. The common link was that all came from the talented pen of Agatha Christie, all were entertaining and each drama was carefully crafted and well cast with many of Britain's best known actors of the time represented.
