影片改编自阿加莎·克里斯蒂的小说《万圣节前夜的谋杀案》，故事发生在二战后的威尼斯，一个怪异的万圣节前夜，本已退休的著名侦探赫尔克里·波洛（肯尼斯·布拉纳 饰）将在世界上最迷人的城市威尼斯里过着安静自得的生活，他不情愿地被邀请前往一座破败阴森的宫殿参加聚会。当其中一位来宾被谋杀后，波洛被卷入了一个充满阴影和秘密的险恶世界。
On her 18th birthday, tough-girl Jonny eats a cake baked by her aunt according to a magical family recipe and goes through a radical metamorphosis. As several classmates go missing, a bloody coming-of-age story takes its course.
路易斯带著一家人从城市迁居到缅因州的乡间小镇开始，由于家门前经常有卡车飞驰，附近的宠物常遭遇被碾死的悲剧，然后被葬在附近的印第安墓园。而这座墓园也因此被称作宠物坟场。不幸的是，路易斯·克里兹的爱女也惨死车轮之下，同样被葬在宠物坟场，他的亡魂却被起死回生成为恐怖的杀人魔，宁静的小镇不再宁静。
民国时期，兴乌镇中医九叔在钱家祭祖时，钱小姐被勒死。九叔发现凶手留下钟馗玉佩，怀疑与钱老爷有仇。凶手再次行凶，九叔与警察队长梁连生暗中追查。最终发现凶手是丁牧，他为祭奠自缢的弟弟丁远而杀人。丁牧伏法，九叔救出被劫的钱巧云，小镇恢复平静。
该片由香港、日本与韩国三位导演：陈果、三池崇史和朴赞郁的三部短片《饺子》、《盒葬》与《割爱》组成。 《饺子》讲的是年老色衰的李太（杨千嬅饰）为了挽回丈夫（梁家辉饰）的心，向媚姨（白灵饰）买人肉饺子企图重返青春的故事。《盒葬》讲京子（长谷川京子饰）被心魔缠绕，源于她小时因不满姐姐翔子独受爸爸的宠爱，把姐姐锁在盒子里，却意外导致其死亡。某日，京子终于收到邀请函，清算过去的历史。《割爱》讲了导演（李秉宪饰）在恐怖片片场收工后，回到家，却被变态临时演员挟持，以妻子的安全为代价，被要求忏悔。一幕真实的恐怖片在他身上开演。
Based on True Events: An Asian American Hacker investigates a website that creates torture videos. He becomes the unwilling sidekick for the sinister mastermind behind it, who changes his life in horrible ways.
As the youngest child who has never known her mother, Tasya (Gabriella Quinlynn) feels lonely. Unintentionally she watched an old videotape owned by his father, Ferdi (Lukman Sardi), who had communicated with her mother's deceased spirit using Jailangkung. Tasya assembles her own Jailangkung and plays it in hopes of communicating with her deceased mother. This incident apparently raised various problems, including a catastrophic spirit. Bella (Amanda Rawles) and Rama (Jefri Nichol) join their new partner, Bram (Naufal Samudra), on an adventure to the bottom of the sea to defeat the demon incarnation that rules Angel (Hannah Al Rasyid) and takes Tasya to the occult.
