A British yuppie couple have a presumably idyllic existence. Yet there is one troubling factor in their lives - an eccentric, and possibly, difficult mother-in-law. Her odd behavior is confirmed in a series of incidents involving her ex-husband, a concert musician, and her ex-husband's new wife, an artist. Flashbacks reveal bits of her troubled past. Little by little, the young couple's life begins to fall apart and the mother-in-law begins to act out her feelings of intense jealousy in the form of revenge, implicating a dear old friend, and leading to murder.
Wedding bells sound for Kit and Angela. But Kit's mother's hatred for his father, her estranged husband Alex, threatens their happiness.
Adapted by Andrew Davies for TV from Domini Taylor's novel.