上班族户田与妻儿组成了一个幸福的家庭。一天，户田任职的公司分来一位雇员沙雅奄美。沙雅奄美使用各种手段接近户田，不久两人发生了关系。事后，他们的秘密恋情逐步升级，户田的幸福之家也面临着威胁……

Makoto Toda was an earnest man who had lived an ordinary life, working as an ordinary company employee. He had built himself an average, but happy home along with his wife and his daughter. Things change however, when a new female recruit named Saya arrives at Makoto’s division. The young woman does everything she can think of to get herself closer to Makoto, and it isn’t long before the two become sexually involved. The affair first seemed as though it would end as a quiet secret only the two would ever know... However, the secret escalates slowly until it spins out of control, and Makoto’s home heads toward destruction...