October, 2026: Lee Turner doesn’t remember how or why he killed his college roommate. The details are blurred and bloody. All he knows is he has to flee New York and go to the one place that might offer refuge—his father’s new home in Japan, a house hidden by sword ferns and wild ginger. But something is terribly wrong with the house: no animals will come near it, the bedroom window isn’t always a window, and a woman with a sword appears in the yard when night falls.