一次偶遇，让两个人一见钟情，两人彼此承诺下一次一定要在一起，她为了这个承诺来到了加拉加斯工作，他也为了这个承诺来加拉加斯打拼，只为了这个承诺，可是，两人再相遇时候，他已经是一个已婚男人，他却成为自己舅舅的未婚妻，偏偏在他们之间的背后，有一个人默默盯着这一切，也盯着这片富人区的一切，挑拨离间，阴谋暗算，枪杀，暗杀，一次次跟随这他们两个和周围人，偏偏这个人还在他们身边若隐若现，小心，你身边的人就是要暗算你的人！

Several families move into an apartment building with their illusions, fears and secrets. But no one can imagine the danger they are facing from Onofre Villahermosa, a charming, handsome, friendly neighbour who is actually a criminal, a murderer and psychopath who has installed hidden cameras all over the building to monitor the lives of the occupants and manipulate them like puppets while trying to ensure no one discovers who he really is. Several years before, Ana de los Ángeles had a chance encounter with Guillermo who helped to heal her pet dog after it had an accident in the countryside, and it was love at first sight for the two of them. However, they meet years later in the worst of circumstances: she is engaged to his cousin Cristóbal, while he is married and has a young daughter. All of the characters will fall in love at different ages, falling in love for the first time, after a divorce, after already having grown up children or even grandchildren. But what all these couples have in common is that love will be very difficult, even impossible.