Nae is a full-time housewife living in public housing. Though she leads an ordinary daily life, she finds small happiness each day. One day, Nae encounters her first experience of groping on the train while returning from shopping. With no intimate nights with her husband and having been distant from physical pleasure for so long, Nae feels fear along with a strange excitement. The next day, unable to forget that sensation and thrill, Nae boards the train again…
