交换:年轻夫妇

省公安厅夏丹调查表弟吸毒致死案，发现背后涉及跨境贩毒集团。她与香港警察卡龙合作卧底，接触头目冷月及其上级李绍远。警方通过技术手段锁定国际毒贩托妮，为取得对方信任，夏丹不得不当着毒贩们的面当场将卡龙击毙……

　　丹妮原本和丈夫泰德正在翻修偏僻的乡间别墅，却在此地惨遭杀害，所有人都怀疑是当地精神病院的病人所为，因为泰德正是该院的一名医生。然而，案发后不久，嫌疑人就被发现死亡。一年后，丹妮的双胞胎盲妹达茜（Darcy），一个自称通灵者和诅咒物品收藏家的人，意外拜访了泰德和他的新女友雅娜。达茜深信她姐姐的谋杀案远比人们知道的要严重得多，因此她带来了她收藏的最危险的诅咒物品，以帮助她复仇。

　　Driving home late at night during a heavy rainstorm, Glen experiences car trouble. Near where his car gets stuck, he spots a house, knocks on the door and is greeted by an oddly friendly middle-aged man, Arthur, and his younger wife, Cyndi. The strange couple pours him a drink, and then more drinks, followed by an unexpected offer that Glen can’t refuse. Elsewhere, a young woman, Katie, is feeling emotionally weighed down by a secret romantic arrangement that feels like a textbook case of gaslighting. And at the same time, in a nondescript research facility, medical professional Julie begins questioning her role in a bizarre experiment, fearing that she’s doing more harm than good.

　　飞叔移民到加拿大与儿子哈哈一起生活。在飞机上认识了一位来自大陆的黄艳秋，并有意撮合艳秋和哈哈，飞叔与艳秋的姨妈是一对欢喜冤家，艳秋和一个富家花花公子一起，哈哈很沮丧，飞叔鼓励儿子向艳秋表白。哈哈买下一块地，想转头赚钱，但买家临时改变主意，令哈哈欠下一笔钱，飞叔、姨妈、哈哈、艳秋开始了四人新世界……