SM kyoshitsu: shikkin (1986)

AKA: ＳＭ教室　失禁, SM Class: Accidental Urination, SM教室：失禁, SM 教室：失禁 | Directed by Ryuichi Hiroki | Country: Japan | Language: Japanese | 68 mins
Cast: Kyôko Akiyoshi, Hisami Sawaguchi, Yukijiro Hotaru, Aya Ishida
Subtitles : –

Synopsis (Google Translate)
A timid man with a domineering wife takes S&M lessons to get revenge.

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