故事背景设定在全球最猛闹鬼邮轮「玛丽皇后号」，如今以闹鬼而闻名的它，在1930年代晚期是足以媲美泰坦尼克号的豪华邮轮。本片故事描述1938年万圣节夜晚，一个家庭搭乘玛丽皇后号展开远洋旅程途中所经历的恐怖事件，而他们的遭遇意外影响了另一个在现代登上玛丽皇后号的家庭。

Reece Shearsmith and Steve Pemberton invite audiences into their writers' room in a documentary about Inside No. 9
Special The Party's Over features interviews with the hit BBC Two series' creators and cast members
Going behind the scenes of the final series, it promises "the perfect farewell" to the award-winning show
Inside No. 9 is to be the focus of a celebratory, behind the scenes documentary on BBC Two this Christmas.
Inside No. 9: The Party's Over will feature interviews with creators Reece Shearsmith and Steve Pemberton and fellow cast members, a decade on from the series beginning with an episode set at a party, Sardines.

A content moderator is tasked with purging offensive media from the internet. When she witnesses a crime in a video, she is lured away from the safety of her keyboard as she obsessively seeks to hold someone accountable.

在一座名为格鲁伯斯鲁宾（Grubbers Nubbin）的小镇上，人们的胆子都很大。因为在小镇附近的一座山上有一个可怕的古堡。古堡里头住着一位疯狂的科学家，他遵循着祖辈留下来的希望要制造出一个最最可怕的怪物。所以，他不断地造啊造啊……古堡渐渐挤满了各种怪物，但是这个疯狂的科学家仍不满足，怪物计划仍在继续着。补丁儿（Stitch Head）就是其中的一个也是最早的一个发明产物。他有着一副人类的外观只是比普通人要小上不少，而且他的脑壳上还打满了补丁。他的职责就是保护教授的其他创造物免受格鲁伯斯鲁宾镇居民的伤害。