贫穷女晶顺因为高中比同学晚读，又坚持同学一定要叫她姊姊，于是常常在学校与同学发生冲突，尤其与芝妍最不对盘，甚至还把芝妍的鼻梁打断，两人在芝妍搬去首尔的前一天约出来谈判，却发生一件不想再想起的意外，希望两人永远不要见面。

　　20年后，晶顺嫁给土财主成了富婆，芝妍嫁给教授成了气质高雅的教授夫人。晶顺巧合的搬到芝妍家对门，两人仍旧是看不对眼，但却同样为了爱情伤心， 晶顺的老公基哲外遇不断，芝妍原本生活在美满的婚姻蓝图中，却因老公有了小三而婚姻梦碎，两人为情所伤决定一起成为复仇的化身，开创百折不挠的人生！

Three women who shared a terrible secret twenty years ago during school years are reunited after they find themselves living in the same apartment complex. They now lead different lives but share the same problem with their husbands who are cheaters. Now, these three housewives, all betrayed by their husbands, bond together to revenge. Through the characters' proactive approach in trying to resolve their marital problems, this show will give the female viewers a cathartic relief.