Synopsis

Adapted from a short story of the same name by Uno Juza.
After the death of her father, Haruko moves to Tokyo and later visits the villa he left behind on Kofu Island. One night, Junichi, who has escaped from an isolation facility, appears to ask for her help. He tells her that she resembles a woman engraved on a key left by her father. Drawn to Haruko, Junichi begins living with her, and the two start a life together. Before long, however, their fateful encounter leads to an unexpected incident..