Sound f/x technician Jong-Chul (Tak Jae-Hoon) is devoted to his work, he doesn't have anytime for his for his wife or son. He tells his wife that he can't go on their family summer vacation, so his wife leaves for the trip with their son. While Jong-Chul is working he receives a phone call from his wife, but he doesn't answer the call and even turns off his phone. Sun-Ok (Jo An) and Young-Woong (Kang Soo-Han) are involved in a minor accident in a parking lot with Jong-Chul. Jong-Chul is worried about the young boy Young-Woong and goes to check on him. The young boy suddenly collapses. Jong-Chul holds the boy. At this time, Sun-Ok sees Jong-Chul holding the boy and mistakes him for a kidnapper. This is how their ill-fated relationship begins.