身障生林永展在河邊溺斃，檢方與法醫勘驗後，以無他殺、意外溺斃結案。林母發現疑點，卻始終查不出兒子溺斃原因。在辦完告別式後，一切似塵埃落定，但秘密卻深藏在永展家中，不為人知……。
遇播放卡顿或无法播放时，可切换线路播放
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