Luna, a cruise ship chambermaid, has to quit her job to attend to her sick brother. While doing so, she discovers that her mother has gone missing and her brother's condition is getting progressively worse. The siblings desperately sneak into an empty condo unit but soon discover that Penthouse 77 is not what it seems.
纪录片以刁亦男和胡歌为主视角，讲述电影《南方车站的聚会》从缘起、筹备到杀青、上映，在近2年的时间里，演员与制作团队从陌生到熟悉，逐步建立起信任、默契，共渡难关的过程。全组成员在漫长的150多个黑夜里，经历着种种争辩、妥协、坚持与转变，是一场独立电影人向着工业化制作水准的黑夜探险。
