Now old and ailing, she summons a biographer to tell the truth about her extraordinary life: Margaret Lea, a young woman for whom the secret of her own birth remains an ever-present pain.

但是，随着年龄的增长和疾病缠身，她决定说出自己真正的人生。写给玛格·丽特的信就是召唤玛格·丽特为她立传。