Husbands who want to be cuckolded and their wives who accept their desires. Those seeking new excitement become immersed in the excitement of an extraordinary experience... Nakata, who is suffering from a sexless marriage, proposes a new excitement to Oshii, who is troubled by his wife's excessive sexual desire: "swapping." At first, Oshii agrees, fueled by alcohol, but he feels a strange excitement at the sight of another man's wife's expression of pleasure with his cock and the sight of his own wife being aroused by another man's cock, and he begins to passionately engage in sexual intercourse in search of even more excitement and pleasure. The orgy of wine and women that unfolds in an unusual space that is unlike anything experienced in everyday life drives the two couples crazy...