债务：夫妻交换

　　龙雁飞（许冠文 饰）是一个著名的武侠小说家，十年了都没有新的作品面世了，不过以往的畅销作品仍然带给他客观的收入，生活无忧。他的女儿Sophia（杨千嬅 饰）是个早已到了适婚年龄，但她恋爱运甚差，只想找一个真正可以过日子的人结婚，其实她一直暗恋自己的上司——花花公子Frankie（刘青云 饰）。Frankie因为意外要搬到Sophia的家住，龙雁飞看见自己心爱的女儿被Frankie当工人使唤，心里很不是滋味，便对Frankie充满了敌意，但在后来的相处中，两个男人又成了知己……

　　家中以卖鱼为生的金大喜（蔡卓妍饰），热爱唱歌的她从小便发明星梦。一个机会让她进入了Harry(陈小春饰)的唱片公司担任歌手Shadow的助手。加入了他们之后才发现，Harry与弟弟阿荣（余文乐饰）不和，Shadow的兴趣更不是在唱歌方面。金大喜极力为他们解围，令原本冷冷清清的一家人多了许多温暖。本来就互有好感的阿荣跟Shadow的撮合下成为恋人。　　Shadow被唱片公司任命灌录唱片，使五音不全的她十分为难，便开玩笑的要让金大喜帮她开腔，怎料Harry误让老板听到了那首歌，并扬言要大力宣传。Harry只好求金大喜扮演幕后代唱的位置。Hary知道金大喜的心意，并为她争取了一个出演的机会，不料被对头人陷害，最后还是要帮Shadow代唱，令大喜黯然，可是阴差阳错的事情又发生了……

　　The main character is Dr. Max Holst, a successful neurosurgeon. One day an intense little man named Steinmetz shows up, who has the real ability to create objects out of thin air, using only his mind. As no one believes him at first, he is held at a ward for mental patients, but manifests the key to his door and escapes. As he has a special interest in Dr. Holst, Steinmetz subsequently invites Holst to his large mansion, which is full of expensive paintings and sculptures, and proves to him that he can in fact materialise objects. Steinmetz’s abilities are evolving by leaps and bounds, and is progressing from being able to create objects only to being able to create living things. His ultimate ambition is to be able to create a human being. He tells Dr. Holst that if he will only perform a certain brain operation on him, Steinmetz will become able to attain his goal. He’s got all the necessary equipment set up in his basement. Dr. Holst, however, is too spooked by the whole thing to agree to this mad scheme, and refuses. Steinmetz then sets about manipulating Holst’s life, to pressure him into performing the operation. By then Steinmetz has become able to create a temporary human being, and in the hope that he can perhaps make his own creation perform the operation, he manifests a doppelganger of Dr. Holst. This double proceeds to take over Dr. Holst’s life, creating chaos for him professionally and personally. And then Dr. Holst starts fighting back. The ending has the dual virtue of being both unexpected and satisfying.

　　一名年轻男子不请自来，参加学校的戏剧排练，以防一群老师和古怪的父母把他女友的儿子开除