The secret lover who was supposed to appear at her husband's house unexpectedly shows up close to them. Despite firmly refusing at first, they can't withstand the relentless, insidious torment and soon find their crotches wet as usual. These adulterous wives, filled with guilt and taboo, ascend into ecstasy while suppressing their moans, painfully aware of their husbands' presence. As the guilt of infidelity clashes with their marital bonds, their individual impulses and pleasures deepen the story.