Christopher "Kit" Vesey and Angela Vesey, a British yuppie couple, enjoy a seemingly idyllic life. Yet there is one troubling factor in their lives - Kit's mother Helena, an eccentric and often difficult woman consumed by anger. Little by little, the young couple's life begins to fall apart as Helena begins to act out her feelings of intense jealousy and desire for revenge, implicating a dear old friend and leading to murder.

• James Wilby
• Diana Rigg
• David McCallum
• Fiona Gillies