影片中的男主角一直在撰写一本名叫《黑镜》的小说，但持续的失眠让他无力将小说写完，即便是编辑的连番催促也依然无效。无奈的他在看望医生之后，得到一个荒诞的答案：他并非是失眠，而是在别人的梦里梦游，一直没能醒过来。唯一的解决办法便是。...

Like many 9-year-old boys, Eli Braverman believes something menacing lives in his basement. When his older sister leaves him home alone one night, Eli discovers if this evil is real or all in his head...