一起意外事故，让本来是老千的沙富摇身一变，成为了卓家老爷多年在外的私生子卓一鸣（罗嘉良 饰）。卓家的大哥卓一元（吕良伟 饰）是个正直的银行家，对于一鸣的身份从未表示过怀疑。不仅一元对一鸣百般照顾，善于讨人欢心的一鸣还得到了卓家上上下下的喜爱，而这其中包括了卓家的女儿卓一心（袁咏仪 饰）的爱。但碍于与一鸣的这份“兄妹”关系，让一心陷入到了痛苦之中。

　　一开始只准备在卓家捞一笔钱的富来，渐渐忘记了最初的目的，在一鸣的身份下，贪念在不断膨胀。那些之前未曾享受过的亲情、爱情和权利，让他想要更多的掠夺。而再好的伪装也终究有被揭穿的一天，一鸣和卓家最终会何去何从……

Billionaire tycoon Marcus Cheuk Yat-yuen welcomes home Malaysian swindler Sha Fu-loi, who claims to be his long-lost half-brother Cheuk Yat-ming. Blinded by the assumed brotherhood, Marcus fails to recognize the true nature of Fu-loi but brings him into the hierarchy of his family banking empire. They both face dilemmas of their own in their relationships. Marcus is married to Connie Ho Tseuk-nin, but an affair with his old flame Angie Tung Ling-chi following a traumatic kidnap scare threatens to jeopardize all he has. Fu-loi secretly falls for Marcus' younger sister Rene Cheuk Yat-sum, who is torn between this fake brother and her devoted admirer Ko Tok-man. Consumed by greed and jealousy, Fu-loi eventually reveals his hidden agenda...