A descent into Hell is triggered when "Ex-Lord" Donald Brocklebank finds that he must leave Longleigh House for London to find a way to pay for the medical treatments for his wife Nancy. Alone, his over-protected, delusional, adult son, James, fancies himself in charge of the manor house with his terminally ill mother, and barricades the two of them into the house for a series of ever more panicked home treatments, mistakenly protecting her from the arrival of Nurse Mary and any outside help.

Eight London couples try to deal with their relationships in different ways. Their tryst with love makes them discover how complicated relationships can be.