金如意, 金吉祥兩姊弟自幼相依為命, 如意為一敬業樂業之觀場女子, 對吉甚是疼愛, 睢卻一向對與吉自少認識的女友 Jackie 看不順眼. Jackie 為與如鬥到底, 策動與吉私奔, 不料途中發生意外, 卻恰巧被一直盤踞已死去二十年的幽魂救回一命. 後吉對這段迷離的記憶亦尔了了之, 另外 Jackie 因與吉私奔失敗, 便索性搬到吉的隔鄰君住, 更加知會其表哥 Ben 助陣對疊, 令吉不勝其煩! 除了鬥垮 Jackie, 她的另一心願就是求取事業的突破, 所以對逢迎其後台老闆大家姐一向不遺餘力. 大家姐對二十年前被浸死的獨生女小玉憶念成狂, 更每年都為小玉舉行忌辰舞會. 如負起找鬼女婿的任務轉瞬期間已到, 情急之下為應付大家姐竟將弟吉祥之生辰八字交給大家姐, 並取家樂雞粉佯稱骨伙訛婚. 成婚當晚, 吉全不知情的跟如到大家姐寓所飲宴, 吉再見小玉一身新娘子打扮出現, 吉對小玉似曾相識, 當夕各人酒酣耳熱, 共夢醉鄉……

Kit (Jacky Cheung) accidentally stumbles upon a house after his motorbike went out of control, and a girl (Maggie Cheung) helps him on his feet, then disappears. But Kit soon finds himself juggling more women than he might want after his female friend who has now moved next door (Pat Ha) expresses her interest along with her sister (Dodo).