1997年,只(zhī )有6岁(📒)儿(ér )童(tóng )(🐌)智商的(de )智(zhì )障男子李龙(lóng )久(jiǔ )(柳成龙(lóng )(🍥) 饰(shì )(🔧))和可爱(🥈)的女儿(ér )(🌰)艺胜(葛(gě )素(🐮)媛 饰)相依为命,生(🎏)活虽(suī )然简单清(😎)贫(pín )(🚤),却充满幸福(👑)。某(mǒu )天(tiān ),执(zhí )着为女儿买美少(🔲)女战士书(shū )(🏐)包(🚥)的(🐖)龙(lóng )(🕌)久(🛺)意外(wài )卷入一起幼童诱(yòu )拐奸杀(🖍)案,而死(sǐ )者竟是警(jǐng )察(🔊)局长(zhǎng )的女儿。龙(lóng )久懵懂无知,搞(⏯)不(bú )清(qīng )状况,昏头昏脑(nǎo )就(㊗)被(🥎)投入(rù )监(jiān )狱(🙂)。在7号牢房中,聚集着(zhe )走私犯(🙉)蘇杨浩(吴达洙(⛏) 饰)、诈骗犯崔春(chūn )浩(朴元(⛳)尚(shàng )(🏯) 饰)、通奸(jiān )犯姜(🧣)万(wàn )范(fàn )(⚾)(金正泰 饰)、恐吓犯老徐(🍑)(金基灿 饰(shì ))和(hé )抢劫(🏻)犯申奉植((👪)郑万(wàn )植 饰(shì ))等五毒俱(jù )全的“社(shè )(🏒)会(huì )(🙎)渣滓”。龙(lóng )(🤔)久孩(hái )子般纯洁(📛)的心渐(jiàn )渐(📸)感动(dòng )了(👵)这几个“大(dà )坏蛋(dàn )(🔞)”,他(tā )们(🔎)甚至不(🌱)惜(👄)冒(🐖)险(xiǎn )将(jiāng )艺胜(shèng )(💣)带入牢房与(yǔ )父(🏓)亲(🚽)相会。黑(hēi )暗冰冷的监(📤)牢(🚻)内(nèi ),7号牢(láo )房(⏺)阳光(🧘)满满…(❓)…
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