Susan has to cope with an appallingly boring husband, an interfering sister-in-law who specialises in burnt omelettes, and a son who ran away to join a non-speaking cult in Hemel Hempstead. Unfulfilled and largely ignored, she conjures up the ideal family – a dashing husband, a heroic brother and a simply super daughter, a dream team who love and cherish her, admire her talents and play tennis a lot! But problems begin when the dream family acquire a mind of their own, throwing Susan into an alarming fantasy which begins to spiral out of control.