Soho. 1965, When an American actress disappears from the Galaxy Theatre, her young dresser, Anna Treadway is determined to find out what happened to her. Anna's search will lead her through a London she barely knew existed: a city of reggae clubs and back street doctors, of dangerous prejudice and unexpected allies. She is aided by a disparate group of emigres, each carrying secrets of their own. But before she can discover the truth about Iolanthe, Anna will need to open herself - to her past, her present and the possibility of love.