Based on

Movies like Tokubetsu kikaku: The tôkô shashin (1990)

Yumiko goes to a hotel with Funaki, whom she met at a park, and after having an affair, he is photographed nude. Her husband, Goro, happened to see a photo posted in an erotic magazine, and although her eyes were erased, he was convinced that it was Yumiko and blamed her. However, she strongly denied it, so she met with the magazine's editor and had him show her a photo of her. She was definitely Yumiko...