Miki's house, where she lives with her husband, Hiroshi, will live with her father-in-law, Hiroshi, who is undergoing medical treatment. Hiroshi, who has been paying attention to Miki for a long time, replies Miki during the day when Kanichi is at work. Hiroshi's request to play with Miki who can not say to her husband gradually escalate and continue to be made to act abnormally.
