A married woman, Mai, lives with her son while her husband is on an overseas assignment. One day, her college student son brings friends home to work on a report. Late at night, one of the friends catches Mai masturbating in the bedroom and uses this as an excuse to force himself on her. Despite being raped, Mai's body responds to the long-forgotten pleasure, becoming intoxicated with ecstasy as she reaches climax and succumbs to the delight...
