通过以另一个人的身份活下来的女人和真切关注她的男人之间的故事剖析人生真谛。隐藏自己的身份,嫁做财阀世家媳妇的卞智淑(秀爱饰)、愿意无条件去守护心爱女子的崔珉宇(朱智勋饰)、想要揭开智淑的真实身份的人与已经知道所有秘密的人,这四人共同住在同一间宅邸里所发生的明争暗斗、阴谋报复的故事。Ji-sook facing a hard time because of his father's debts and begin chased by moneylenders. When a series of things happen Ji-sook have to live with Eun Ha's identity (a Woman from elite family) because she look exactly like a Eun Ha.