Returning to his hometown from a local transfer, the brother-in-law Hiroshi feels out of place. On a sweltering tropical night, he becomes captivated by his sister-in-law Ayumi's sweaty sleeping figure. Driven by anxiety and desire, the brother-in-law rapes Ayumi while the family is away. Her reaction to him... A dense intercourse between man and woman on a sleepless night！！！
