一宗案件的发生让性感美丽的梦娜（村上丽奈 饰）邂逅了探员徐江，徐江被梦娜的美艳深深吸引，想方设法的要得到这个女人。然而，比起徐江的爱，梦娜更加喜欢的是能够实实在在的抓在手里的财富，所以，她选择了年纪一大把却腰缠万贯的黄老头，成为了黄老头家中的镇房太太。

　　亚美是梦娜的表妹，她孤身一人千里迢迢来到香港，投靠在表姐家中。一次偶然中，亚美邂逅了李老头的养子李威威，被其英俊的外表和殷实的家底所吸引。为了钓得金龟婿，亚美使出了万般魅术，谁知道竟然毫无用处，原来，李威威心心念念的都是自己的继母梦娜

Everyone seems to be chasing Mona Hsia-Hwang. The opening scene has her being pursued a cornered by a cop, who molests her with his pistol. She gives into his attentions, then shoots him, establishing her credentials as a femme fatale. We then meet Mona's young cousin May, being picked up by Mona's husband's adopted son Li Wai Wai. Wai is the smouldering sullen type, whom May fancies almost immediately. Trouble is, Wai is secretly in love with Mona. Mona tends to the bodily functions of her sick and elderly husband Hwang Fei Hung. Fei Hung has a heart condition, and is under medical orders to avoid excitement. But, with a wife as luscious as Rena M, how is this possible?