Yoshioka goes out drinking with his co-worker Takigawa after work. Not satisfied with the drink, the two decide to continue drinking at Takigawa's house. Yoshioka develops feelings for Takigawa's busty wife Eri, who prepares the drinks for him despite it being late at night. However, perhaps due to the heavy drinking, Yoshioka ends up getting into an argument with Takigawa about work. The situation somehow calms down, but in his frustration, he goes to Takigawa to rape Eri in the middle of the night...