Watashi no Shiranai Mesu no Kao

Masato lives a happy life with his wife, Ichika. But one day, a disc is sent to him. The disc contains some videos of Ichika having sex with someone. He can't turn his face away from it.... A few days later, another disc is sent to him.... The disc contains all of Ichika's sex history.... A man finally appears in front of Masato.... What does Masato think about her indecent past experiences...? What will happen to them in the end...?