ai sayama, a married woman, was spending a dreamlike 3 days indulging in sex with her affair partner as if in an av, unaware that her husband was hiding in the house... her husband, who returned home due to a canceled business trip, was hiding to surprise his wife. there was his wife who came back and a strange, intimidating man. suddenly starting infidelity. an affair scene that can be seen or not seen from under the bed. i didn't want to see the extremely erotic scene unfolding before my eyes, but i ended up watching it and got a depressed erection... a strange experience of peeking in real time from every gap.