MO SIU WAI (Cheng Yue Ling) is a typical business woman in town. She is beautiful, intelligent and highly self-confident. Besides being fully occupied by her work, WAI’s love life is empty. She is longing for the appearance of her dream guy.

After a vacation, WAI finds that the office has turned upside-down. Her boss has assigned a law clerk YU LOK TIN (Wong Chi Wah) to be her assistant. TIN is profligate, unpolished and has a bad reputation. WAI feels both hilarious and miserable working with TIN.

At the same time, WAI is glad to know her father (Wu Fung) has married a wife again in States. Unexpectedly, her step-mother YUEN YUAN (Yuan, Marsha) is a twenty-year-old young lady. YUAN moves into WAI’s house and carries out the responsibility of a mother. It causes a lot of changes and troubles to WAI.

These people from totally unrelated backgrounds come together by mistake. The complicated and delicate relationships among them create many funny, uplifting and witty encounters!