Olivia Colman finds some surprises in her ancestral history, and her belief that most of those in her family tree emanate from Norfolk turns out to be far from the truth. Olivia is astonished to discover that she needs to travel to India to find out more about her great-great-great grandmother Harriot, who was an orphan in 1811 on a ship bound for England from Calcutta. Harriot's father was an an Englishman, but the identity of her mother, who gave birth to her in a remote Indian village, is a mystery Olivia delights in solving.