Sumire is a beautiful woman and a heavy drinker who lives in this apartment with her husband. She has a terrible habit when she's drunk... On this day, she gets so intoxicated that she mistakes the neighbor's place for her own, wanders inside, and falls fast asleep. The resident of the apartment is shocked to find her. He recognizes her immediately as the housewife from next door, but seeing her in such a defenseless state, he can no longer suppress his lust...