A man and a woman have a casual conversation in the waiting room of a hospital in the afternoon, where the sun shines through the trees. A woman who naturally flutters while waiting for a doctor's appointment at the refreshing young man's casual consideration. The next time they met by chance was in the elevator of the same apartment building. At that time, the elevator to make an emergency stop! ! Whereabouts of two men and women who were suddenly trapped in a closed room...?
