My husband has a lot of business trips, and Keiko is a married woman who spends a lot of time with her son. One day, my son's friend, who came to write a report for a stay, witnesses Keiko's masturbation. When he pretends to be sick and is alone, he forces Keiko. Even though I should have been raped... my body reacts to the long-forgotten pleasure, and I get drunk with the climax that comes. Her friend's desires run wild, she is caressed even by her son, and eventually she drowns in affairs with them...