A couple's harmonious life takes a turn for the worse when their husband's trusted friend betrays him by defaulting on a large loan, leading to bankruptcy. Desperate to return to happier times, the wife secretly meets with the money lender behind her husband's back. She agrees to be his woman during weekends in exchange for helping her husband. With determination in her heart, she offers up her body as a sacrificial surrogate, enduring humiliating weekends filled with degradation until...

順風満帆な夫婦生活が、ある日を境にぶち壊れる。会社を経営する夫は、信じていた友人の金貸しに裏切られ多額の借金を背負い倒産に追い込まれてしまう。なんとか幸せだったあの頃に戻りたい妻は、夫に内緒で金貸しに会う事に。「旦那を助けたかったら、週末だけ俺のオンナになれ！！」自分さえ我慢すれば…その想いを胸に、身体を捧げる決意をした妻。その日以来、孕むまで終わらない身代わり肉便器として屈辱的な週末が始まって…。