A bizarre set of mysteries have befallen the Kuonji household. Kyoko Kuonji is said to be with child for the last twenty months, and her husband Makio disappeared a few months prior to her pregnancy. The odd circumstances have left the family with no one to turn to for help, until a freelance writer asks his exorcist friend to take on the case. The catch-the exorcist does not believe in ghosts. To Akihiko "Kyogokudo" Chuzenji, the supernatural is as much metaphysical and mental as it is unearthly.

The Summer of the Ubume was the debut work by the Neil Gaiman of Japanese mystery fiction - Natsuhiko Kyogoku. Weaving together intrigue and Kyogoku's passion for Japanese folklore, particularly the paranormal and preternatural, this Summer gives birth to a new form of Japanese fiction.