Yi-jungisinherlatetwentiesandstillliveswithhermother.Havingraisedherdaughteralone,Su-kyungisnowreadytostartanewlifewithherfiancéandleavethepastbehind.NotsoYi-jung,whofromanearlyagehasalltoooftenhadtoserveasanoutletforherirasciblemother’sfrustrations.Themanyyearsofdisregardhaveleftherwithacripplingmixtureofsuppressedfeelingstowardshermotherfromwhomshesimplycannotbreakfree.Whenanargumentbetweenthetwoescalatesinasupermarketcarpark,Su-kyunghitsherdaughterwithhercar.Justanaccident,themotherclaims.Maliciousintent,Yi-jungretorts.Thisrebellionmarksthebeginningofanarduousprocessforbothwomentocutthecord.