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.

舞台は本州四国連絡架橋の一つ、明石－鳴門ルートの起点、明石町。パチンコ屋の主人・青木大作は、架橋工事が再開されるという情報をキャッチして、何はさておき、頭を押えられている女房・波江にご注進に及んだ。波江は、かねてより橋が出来た日に備えて、淡路島の岩屋に一大リゾートホテルの建設を考えていた。波江は早速、淡路島の旅荘兼釣宿「防人荘」の買収工作を大作に命じるが…。