蒋如珠（商天娥 饰）本来是一个平平凡凡的师奶，因她在所住的屋村那里极富号召力，人气极佳，被精明奸狡的证券商人丁兆景（林嘉华 饰）看上了。丁兆景一心想获得大富豪司徒联辉的青睐，力捧如珠当师奶股神，通过她的号召力，将师奶们的私己积蓄集中起来，为己所用。如珠不知是计，甚至不顾老实忠直的证券从业员丈夫子聪（谢天华 饰）的反对，当上了公众人物——大名鼎鼎的师奶股神。由于忙于工作，如珠渐渐忽略照顾家人，令她和子聪的矛盾更加升级。一次，丁兆景炒股票被套，为了自己安全脱身，他利用如珠号召师奶们入他的股票，帮他接货。最终师奶们亏得血本无归，大家都怪如珠，连如珠自己亦十分惭愧。如珠亏光了一对子女以后的大学学费，子聪十分生气，要和她离婚。最后两人为了一对子女健康成长，离婚一事暂时搁置。丁兆景顺利成了司徒联辉的手下，为了进一步博取他的青睐，丁兆景再一次不择手段…

“HOUSEWIVES” always are the good long term bets compared to the other options. As a stockbroker, WONG CHI CHUNG (Tse Tin Wah) is not cunning and tricky enough. Many of his customers have turned to the new securities firm in the same estate. Top broker of the firm, TING SHIU KING (Lam Ka Wah), tries to expand his customer base by developing the housewives market. He teaches CHUNG’s wife TSEUNG YUE CHU (Sheung Tin Ngor) all about stock exchanges. CHU earns a lot of money through KING and many housewives follow her blindly. CHUNG wants CHU to stop indulging in stock market and they fight with each other all the time. Feeling lost in both his career and marriage, CHUNG meets his puppy lover KOO KA CHUN (Tang Lai Ming) and discovers that she also works as a stockbroker. While everybody has become a devoted stockholder, the market suddenly drops drastically…