和風不倫人妻　恥さらしな下半身 (1995)

Eriko married the heir of a businessman and was living happily ever after. One day, even though it was Sunday, her husband Yoshiki went to work. She became curious about a photo book published by her brother-in-law Kensaku that her husband had left behind. Eriko was secretly worried about Kensaku's threats...