From The Telegraph:
The Doll, billed as “a dark story of obsession and jealousy”, is the peculiar tale of a man who becomes infatuated with a woman he meets at a party. He visits her home only to discover the real object of her affection: a life-size, mechanical male doll.
The story was written around 1928 and the female character was called Rebecca, a name du Maurier would use a decade later in her most famous novel.
It is one of 13 du Maurier short stories to be published in a new anthology.
The author made reference to The Doll in her autobiography but biographers and academics failed to find it. Ann Willmore, a du Maurier enthusiast, spent years on the case and finally unearthed it in a 1937 compendium, The Editor Regrets, featuring short stories that had been rejected for publication.