交换：两对夫妇离婚旅行

　　After a mysterious accident at a research camp on the Isle of Gran Manan, a CEO hires a team of blue-collar mercenaries to extract his daughter, a scientist working at the camp. Upon arrival, the team soon learns that not only is the island surrounded by a wormhole that causes time to reset every three days, but it's also crawling with hideous monsters. As they learn more about the nature of time, space, and the creatures on the island, they quickly realize that death may be the easiest way to escape the island.

　　繁华的国际大都会香港闹市中心，口若悬河的洪家宝（陈百祥 饰）带着傻乎乎的小弟麦交（邵国华 饰）公然行窃，结果路上遭遇妙龄女郎嘉嘉（张艾嘉 饰）举报。虽然两人百般抵赖，但在最后关头漏了马脚，被警察关进监狱。令洪、麦意想不到的是，嘉嘉居然是监狱的辅导官，所谓冤家路窄，洪家宝真是窝了一肚子火。二人所在的牢房狱霸横行，为了逃出对方魔爪，他们不惜羞辱监狱长官。经过一段时间牢狱之灾，二人和狱中认识的伙伴冠仁（胡大为 饰）出狱。谁知他们死性不改，骗吃骗喝再度锒铛入狱，这次又撞上了有着一副好皮囊、爱装警察的小混混荣仔（张国荣 饰）。　　洪家宝大骂荣仔，意想不到的是荣仔的老姐居然就是洪的仇敌嘉嘉……

　　简介：石惊天是一位擅长办理离婚案的风流律师，喜欢与有夫之妇鬼混。老友黄律师之婚礼，令石突然萌置家之念。遂托物色对象，欲将朱带金改造成他理想的太太。一天，石的堂弟石头从外地回来，诉说未婚妻移情别恋，石大骂石头有辱家风，于是授计助其追女仔。原来石头想要追求的正是朱。石知道后，马上带朱到西班牙渡假，奈何石头苦苦追踪而至……

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