Sachiko, a young woman frustrated with her life of dull routine, and seeking stimulation outside the deadening monotony of housework and catering to her needy husband, befriends Kobayashi, a neighbor whose wife has been carrying on an affair right under his very nose.

To get revenge on her ex-boyfriend and to help revive her late mother's tennis table club, a table tennis prodigy decides to take part in a mixed doubles table tennis tournament.