40-year-old Sociology professor Hye-jung falls for a 21-year-old Usang, a male student who helps her project research on women's extramarital affair. Their prohibited love and secrets are watched and told by two secretive observers. They are her copy machine and his digital camera.
Jang Seo-hee
Lee Hye-jeong
Jung Suk-won
Lee Woo-sang
Lee Pil-mo
Duplicator
Shim Yi-young
Dica, digital camera
Son Ji-na
Sushi restaurant woman
Park Hee-jin
Delegate Kim
Wi Ji-Woong
Club Waiter
Yoon Da-gyeong
