My nightmare begins when my wife Kana and I move into our new home. Our neighbor is a shameless freeloader whose entrance has been buried in foul-smelling garbage since moving day. Even the real-estate company cannot control him, so I finally storm into his house. He seems timid and apologizes repeatedly, but the disturbing way he stares at Kana fills me with dread. A few days later, after the odor problem dies down, I begin to notice something wrong with my wife.