What was it that led a man to make lighthouse-keeping his life's occupation - to select a monotonous lonely job, which takes him away from his family for months at a time, leaving him in a cramped, narrow tower with two other men not of his own choosing? Lighthouse-keepers and their families opened their souls to Tony Parker, who has been described as Britain's most expert interviewer. With this revelatory portrait of a small community he has given us an exceptional insight into the British character.