Madrid, 1880. Elena Bianda is the most sought-after lady-in-waiting in the entire city. Despite her youth, more than 20 ladies have already had decent courtships and courtships under her tutelage. Her success lies in being rigid in morality with their families and sensitive to the concerns of the ladies. A complicated balance that Elena handles perfectly. She was born for it: seeing them successfully walk down the aisle is, quite simply, her whole life. All this changes when she arrives at the Mencía house and has to take care of 3 sisters.

费德里科·赛里格曼（何塞·科罗纳多饰）为了养病而从通信公司退休，这场疾病让他在两年间一直处于被边缘化的状态。回来后，他发现儿子们变得陌生了，并且正在将生意往他厌恶的方向发展。费德里科会不惜一切代价阻止孩子们毁掉自己的传承。