Margaret Lea works in her father’s antiquarian bookshop where her fascination for the biographies of the long-dead has led her to write them herself. She gets a letter from one of the most famous authors of the day, the mysterious Vida Winter, whose popularity as a writer has been in no way diminished by her reclusiveness. Until now, Vida has toyed with journalists who interview her, creating outlandish life histories for herself --- ;all of them invention. Now she is old and ailing, and at last she wants to tell the truth about her extraordinary life. Her letter to Margaret is a summons.