Ichika, a wife, leads a cold married life with her husband Kazuo, who is often away on business trips. One day, while indulging in masturbation in broad daylight to ease her loneliness, she is seen by a burglar who happened to be there and is attacked. As Ichika flees the house, she calls for help through the window. Ishikawa, a neighbor, notices this and rushes out of the room, successfully chasing the burglar away! In relief, Ichika embraces Ishikawa. And then, as things unfold...