Oh-gwang, a property developer, had a car accident in the middle of a remote mountain road. When he wakes up, he finds himself in a house surrounded by a family who saved his life. They seem to look after him, but soon this odd family asks him to confess his wrongs of the past, and interrupts him to get out of that backwoods. He manages to reach nearby school to ask for help, but the family members chase him down to the school. Driving him into the corner, the family keeps forcing him to confess the past sin, but he can't remember what he has done to this family...