一场暴力悲剧以不同的方式影响着活生生的软性夫妻。两对中年夫妇来到美国教堂中，共同缅怀各自早逝的幼子。。。他们都因丧子之痛而痛不欲生、辗转难眠。随着四人对话的推进，观者发现其中一对夫妇（Jayamp;Gail）的儿子死于校园暴力，而另一对夫妇(Richardamp;Linda)的儿子确实施暴者。Richard和Linda讲述其子自小成长史：孤僻、怪异。。。Gailbringsarighteousangerearlyinthemeeting,wonderinghowtheotherparentscouldhavemissedwarningsigns.Richardamp;Lindainsistit’snotasclear-cutasthepressmadeitouttobe.Itneveris.Thecomplexemotionalissuesthatcirclethrough“Mass”likenaturevs.nurtureandblamingparentsfortheirchildrenx27;sactionsgiveitsomeemotionalheft,butKranz’sdialoguetoooftensoundsscrip