Daisuke and Shinichi are companions who frequent girlie shows and parties until they find out they are rivals bidding for control of a major resort hotel. During the bargaining sessions each accuses the other of misconduct because of their escapades, thus getting them in trouble with their families. Shinichi's ecology group and Daisuke's wife's women's lib movement become involved.
Kindaichi becomes involved in the case of an actress whose husbands keep dying mysteriously — and her new fiancé has just received a threatening letter.
