A new thriller by Elaine Morgan.
[Starring] Alfred Burke, Billie Whitelaw, Richard Pearson

(See above)

For Harry and Stella Selbourne, ten years of married life have rubbed off the gloss and shine of happiness, and left a bickering, unsatisfactory relationship, from which both of them might at any time seek escape. With Stella's blustering, joke-cracking brother-in-law, George, always near at hand, and some convenient poisons available in the developing room of Harry's failing photographic business, the scene is set for at least one kind of remedy. But in this new TV thriller Elaine Morgan has added too many ingenious twists to the plot to allow it to become a straightforward 'triangle'.