Kabukicho, Shinjuku, the number one entertainment district in Japan. There are professional gigolos who make this sleepless city their base and get what they want, from money and women to desire. They are the "gigolo" gang led by the charismatic Naoki Fushimi. Akira, Yuki, and Ryoma are aiming to become full-fledged gigolos. Akira has a girlfriend named Mariko who is a model for vinyl magazines. But that's not enough for a gigolo. For a gigolo, having sex for free is meaningless. Yuki finds a soapland girl named Misa, and Ryoma finds a woman named Yoko, and they spend a sensual night together. Meanwhile, Akira is taken by Mariko to help with a vinyl magazine shoot. Akira is getting increasingly impatient with his life, which can hardly be called gigolo...

私は教師のプライドを捨てた…。鉄格子の中の恥具の責め苦に白い下肢を震わせるマゾ人形！女教師・小百合（麻吹）は、教え子の蘭子（山地）が怪しげな男（草薙）に襲われているところを救う。が、逆に自分がレイプされてしまう。しかも、その様をじっと見つめている男がいた。ピアノ調教師の祝（有働）である。彼は、小百合を自宅に無理矢理連れて行き，地下室の鉄格子の中に監禁する。「今日から私の妻になるんだ」…。その日から始まる地獄の責め。小百合の失踪に気付いた蘭子も捕らえられ，マゾ人形と化すのだった…。大量のグリセリンに始まり，鎖責め、剃毛、緊縛逆さ吊り、ムチ打ち…。恥具の犠牲となる内に、うねり出す柔肌。これぞSMの真骨頂だ。