Tung (Bobby Au Yeung) is a successful salesman. He comes to know Hung (Maggie Shiu) when he substitutes a class for his friend. Hung is very eager to learn and keeps asking questions. Tung thinks she is being difficult so he turns nasty. The two became an odd couple. They go through a lot before they turn into friends. Hung’s younger sister Lan (Margaret Chung) is an undergraduate studying journalism. She bets Tung’s brother Nam (Lo Man Kit) with who she makes friends through the Internet, would fall in love with her. When discovers this, he leaves her in anger. Then Tung discovers his net-friend Hay (Astrid Chan) is the mistress of his boss Wa (Ken Chan). Wa then frames Tung and charges him. In order to help Tung, Hay reveals her relationship with Wa. Tung is touched. Torn between Hay and Hung, what will Tung do?