After Hassan discovers Zidik living alone on the streets, he takes him in and cares for him like a son. Zidik now works together with Hassan in the junkyard but both men are stuck in the past. 15 years ago, they lost their loved ones to a virus that turned people violent. Hassan often "forgets" that the virus killed his wife, while Zidik still remembers his sister attacking his mother and his father sacrificing himself to save Zidik. He also often thinks of Zooey, the girl he met at the orphanage he briefly stayed at before being kicked out by the evil Kak Lily. Meanwhile, Dr. Rahman, a disgraced scientist who previously managed to contain the virus, manufactures a new strain of zombie virus to create chaos. Amid this new zombie outbreak, Zidik encounters a zombified Zooey who tries to attack him but she slowly begins to remember who he is. Zidik then gets taken prisoner by Dr. Rahman when the doctor discovers that he is immune to the virus.
香港皇家警察萧玉龙（萧玉龙 饰）和刘兆铭（刘兆铭 饰）是一对同袍好友。某晚，二人参加婚宴，刘酩酊大醉，随之被扒手盗去荷包，更险遭飞车撞倒。二人驱车追赶飞车司机，糊里糊涂来到一片荒芜所在，更目睹持刀男子（黄初一 饰）追杀中年妇女的场面。他们上前制止，经过一番殊死搏斗，最终刘将持刀男子射杀。 然而蹊跷之事接踵而至，先是房间突然陷入混乱，然后萧之女友也被恶物缠身。虽经拜神请愿，却未见成效。最后经高人指点，萧方明白这一连串怪异事件的背后竟是隐藏多年的世代冤案……
青春靓丽的女子莫丽·哈特莉（莎拉·林德 Sarah Lind 饰）和朋友们在一家舞厅庆祝她的24岁生日，当晚她似乎受到什么神秘力量的蛊惑，整个人变得有些神志不清，无法左右自己的言行。次日一早，两名警察上门，结果在莫丽的浴室里发现两具尸体。在此之后，莫丽被诊断精神上有问题而关进了精神病院。病院的治疗并没有任何好转，莫丽的异状反而愈演愈烈。种种异象，让担任主治医师的女性开始相信这个女孩的确被恶魔附体。与此同时，病院内还住着前牧师约翰·巴罗（戴文·萨瓦 Devon Sawa 饰），他当初经历了一次刻骨铭心的失败驱魔仪式，此刻更被教廷剥夺了神父身份。 医院内神秘可怕的事情愈演愈烈，约翰不得不迎接魔鬼的挑战……
