Men who want to be cuckolded and the women who accept their desires. Those seeking new excitement become immersed in the excitement of something out of the ordinary... Nagaoka and Kamata, attracted by a "swapping" party their boss is attending, decide to try it with their respective spouses. After experiencing the indescribable pleasure, they seek even more excitement and suggest to their wives that they join the swapping party. As a rehearsal, they have the wives change into lewd outfits, giving them even more stimulation. Excited by the expressions on the wives' faces as they change from "anxiety" to "pleasure," they become immersed in the incredible pleasure. The drunken orgy that unfolds in an alien space never experienced in everyday life drives the two couples crazy...