Gong Yeop (Heo Joon Ho), the president of a small film company, and his wife Un Yeong (Lee Eung Kyung), have been married for 10 years. One night, after a minor argument, Gong Yeop is kicked out of the house, and he uses this opportunity to have an affair with Hee Bong (Lee Ha Yan). During their separation, Un Yeong and their son Hyun Dong (Park Chi Soon) visit Gong Yeop, who is suffering from a toothache, and they see Hee Bong. Enraged, Un Yeong punches Gong Yeop. The next day, at Gong Yeop's suggestion to restore family peace, the three go on a ski trip. Gong Yeop cannot end his relationship with Hee Bong and, while falling, calls out Hee Bong's name, leading Un Yeong to decide on divorce...