A 42-year-old married woman with 13 years of marriage and one child. She has been busy raising her family and taking care of household chores since she got pregnant right after getting married. Time flies by, and before she knows it, she's already past forty. Her relationship with her husband is good, but he's always busy starting his own business, leaving them in a state of neglect. Feeling lonely and unappreciated, she gets scouted for an AV appearance. Despite feeling guilty about betraying her husband, she embarks on a journey with a stranger, indulging in long-awaited pleasure. Their nights filled with sin continue endlessly...

かのか42歳、結婚13年目、子供1人。結婚後すぐに子宝に恵まれ家事と子育てに追われるうちに月日は経ち、気付けばもう四十路。夫婦仲は良好だが会社を立ち上げ多忙な夫とはレス状態。誰からも女扱いされず寂しさを感じていた頃、人生の転機が…スカウトされAV出演。そして夫への罪悪感を抱きつつも初対面の男と旅に出た人妻は、久しぶりの快楽に酔いしれた。幾度となく悶えた人妻の背徳の夜は終わらない…。