A secret club for individuals with a special fetish for outdoor exposure play has spread across Japan. Recently, more and more married women seeking thrills have begun to join. Captured on camera are wives who become aroused through deeply humiliating and taboo acts they could never admit to. In the mountains, they lift their skirts, remove their panties, and expose their bare buttocks. Fear fades as they enjoy it together. If women can even master standing urination, they can do anything. Even in falling snow, beneath open coats, naked bodies and tense figures are revealed. Inside moving cars, they spread their legs wide and play with their cunts, escalating the exhibitionism from parking lots to inside buildings. Transforming pubs into orgies isn't enough—they head to night-time parks to enjoy public sex. This is a gathering place for sex junkies who can't get excited without being watched, who crave extreme thrills beyond ordinary pleasure.