Inthispowerfuldocumentary,MamaYang,an84-year-oldwomanlivinginNewYork,findsherselfincorrespondencewith45highsecurityprisoninmatessheviewsasherownchildren.MostareChineseAmericanimmigrants,andseeinMamaYangamotherfiguretheyneverknewbeforetheysteppedthroughprisonwalls.                  
                  ForMamaYangthough,thestoryisaboutmorethanChristiancharity.ShehadalreadylivedafulllifeinTaiwanwhenherhusbanddiedatagesixtyandhersonlosttheirhouseinafinancialblunder.ShemovedtotheUStostartanewandliveswithaTaiwaneseAmericangranddaughterthatremainsdistant.Inafilmmarkedbyfamilyseparations,MamaYangwritesletters–whethertotheincarceratedortoherowngranddaughter–toheallifetimesofwounds.