A man who is worried that he cannot give his wife sexual satisfaction visits a hot spring inn with his wife, but the secret is that the innkeeper will cuckold his wife with his big dick... When the clerk sneaks up on the wife who is sleeping next to her husband and inserts his dick into her greedy pussy, she starts to moan uncontrollably! This is a top-secret recording of the vulgar and obscene nighttime activities of four lewd wives!