Five years into their marriage, the couple had settled into a quiet life in their new home. But the husband's daily routine of commuting between work and home had cooled their relationship, leaving behind the warmth of their honeymoon days. One day, the husband comes home drunk, bringing along his respected superior, Nakata. After deciding to continue drinking, the husband quickly passes out, losing consciousness. Left alone together, the two begin drinking again. Nakata, captivated by his subordinate's wife's beauty and purity, can't resist and suddenly kisses her. From this moment on, the couple's relationship begins to rapidly unravel.