A salaryman husband was in a traffic accident six months ago and became paralyzed, living in a wheelchair. Although doctors gave up on a full recovery, he couldn't accept it and visited various orthopedic clinics and osteopathic offices. One day, perhaps at the husband's request, a mysterious medical practitioner claiming to be a "wave osteopath" comes to the house. After receiving this suspicious treatment, the husband somehow believes he will be cured and becomes devoted to the man. The man then begins to parasitize the family. The brainwashed mother and daughter eventually reach the point where they provide sexual service as told by the man... "This prey is the best, I'll fuck them thoroughly." The mother is fucked and reaches climax in front of her daughter, while the daughter devours the cock while being watched by her mother. With their minds completely eroded, the mother and daughter turn into the fraudster's human onaholes!!!